Phosphorus dimer


Gas phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Quantity Value Units Method Reference Comment
Δfgas144.0 ± 2.0kJ/molReviewCox, Wagman, et al., 1984CODATA Review value
Δfgas143.65kJ/molReviewChase, 1998Data last reviewed in June, 1961
Quantity Value Units Method Reference Comment
gas,1 bar218.123 ± 0.004J/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
gas,1 bar218.07J/mol*KReviewChase, 1998Data last reviewed in June, 1961

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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View table.

Temperature (K) 298. to 6000.
A 35.92198
B 1.483806
C -0.339811
D 0.028919
E -0.401919
F 131.5232
G 258.8557
H 143.6530
ReferenceChase, 1998
Comment Data last reviewed in June, 1961

Reaction thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

(CAS Reg. No. 141171-05-3 • 4294967295Phosphorus dimer) + Phosphorus dimer = CAS Reg. No. 141171-05-3

By formula: (CAS Reg. No. 141171-05-3 • 4294967295P2) + P2 = CAS Reg. No. 141171-05-3

Quantity Value Units Method Reference Comment
Δr208. ± 32.kJ/molTherO'Hair, Krempp, et al., 1992gas phase; Acidity between MeNO2, tBuSH
Δr213. ± 21.kJ/molIMRBO'Hair, Krempp, et al., 1992gas phase; Hydride affinity: between CO2, SO2

(CAS Reg. No. 141171-04-2 • 4294967295Phosphorus dimer) + Phosphorus dimer = CAS Reg. No. 141171-04-2

By formula: (CAS Reg. No. 141171-04-2 • 4294967295P2) + P2 = CAS Reg. No. 141171-04-2

Quantity Value Units Method Reference Comment
Δr144. ± 10.kJ/molIMRBO'Hair, Krempp, et al., 1992gas phase; Fluoride affinity: Between H2S, MeSH
Δr138. ± 34.kJ/molTherO'Hair, Krempp, et al., 1992gas phase; Acidity between MeSH, H2S

Gas phase ion energetics data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data evaluated as indicated in comments:
L - Sharon G. Lias

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess

View reactions leading to P2+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)10.53eVN/AN/AL

Electron affinity determinations

EA (eV) Method Reference Comment
0.630 ± 0.050LPESJones, Ganteför, et al., 1995Vertical Detachment Energy: 0.68±0.05 eV; B
0.589 ± 0.025LPESSnodgrass, Coe, et al., 1985B
<0.649985PDFeldman, Rackwitz, et al., 1977B
0.24 ± 0.23EIAEBennett, Margrave, et al., 1974From P4; B

Ionization energy determinations

IE (eV) Method Reference Comment
11.7 ± 0.5EIBalducci, Gigli, et al., 1981LLK
10.53EVALHuber and Herzberg, 1979LLK
10.567 ± 0.002SCarroll and Mitchell, 1975LLK
10.3 ± 0.5EIGingerich, Cocke, et al., 1974LLK
9.7EIDrowart, Myers, et al., 1973LLK
10.60PEPotts, Glenn, et al., 1972LLK
9.7 ± 0.5EISmoes, Myers, et al., 1971LLK
11.2EIGingerich and Piacente, 1971LLK
10.7 ± 0.1SDonovan and Strachan, 1971LLK
11.0 ± 0.3EIDeMaria, Gingerich, et al., 1968RDSH
9.6 ± 0.3EICarlson, Kohl, et al., 1968RDSH
11.8 ± 0.5EIGutbier, 1961RDSH
10.62 ± 0.01PEBulgin, Dyke, et al., 1976Vertical value; LLK
10.84PEPotts, Glenn, et al., 1972Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
P+15.9PEIGingerich and Piacente, 1971LLK
P+15.1 ± 0.3PEIDeMaria, Gingerich, et al., 1968RDSH

Constants of diatomic molecules

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Klaus P. Huber and Gerhard H. Herzberg

Data collected through May, 1977

Symbols used in the table of constants
SymbolMeaning
State electronic state and / or symmetry symbol
Te minimum electronic energy (cm-1)
ωe vibrational constant – first term (cm-1)
ωexe vibrational constant – second term (cm-1)
ωeye vibrational constant – third term (cm-1)
Be rotational constant in equilibrium position (cm-1)
αe rotational constant – first term (cm-1)
γe rotation-vibration interaction constant (cm-1)
De centrifugal distortion constant (cm-1)
βe rotational constant – first term, centrifugal force (cm-1)
re internuclear distance (Å)
Trans. observed transition(s) corresponding to electronic state
ν00 position of 0-0 band (units noted in table)
Diatomic constants for 31P2
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
Carroll and Mitchell's Rydberg series Vn converging to F 2Σu+(v=0):
... 4σug2u4 nsσg 1v=125225 - R/(n-1.86)2, n=5(v5),6...16. Similar series with v'=1.
Carroll and Mitchell, 1975
V5 (1Σu+) 114085 [789]         V5 ← X 114090
Carroll and Mitchell, 1975
... 4σu2gu4 2           
missing citation
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
... 4σu2gu4 nfπu 3           
missing citation
... 4σu2gu4 nfσu 4           
missing citation
... 4σu2gu4 npπu 5           
missing citation
... 4σu2gu4 npσu 6           
missing citation
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
... 4σu2g2u3 7           
missing citation
... 4σu2g2u3 ndδg ? 8           
missing citation
... 4σu2g2u3 ndπg 9           
missing citation
... 4σu2g2u3 ndσg 10           
missing citation
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
... 4σu2g2u3 nsσg 11           
missing citation
Unclassified bands 79700 - 84500 cm-1.
Carroll and Mitchell, 1975
U 83362 [551] H 12         U ← X R 83248 H
missing citation
G6 (1Σu+) 81327 [723] 13         G6 ← X R 81299 H
Creutzberg, 1966; Carroll and Mitchell, 1975
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
T 80992 [713.1] H 14         T ← X R 80958.5 H
Creutzberg, 1966; missing citation
S 1Σu+ (80840)    B1=0.2783     r1=1.978 S ← X R 81453.89 15 Z
Creutzberg, 1966; Carroll and Mitchell, 1975
R4 (1Πu) 80115 [740] 16         R4 ← X 80095
Carroll and Mitchell, 1975
Q (1Πu) (79860) [617.6] H 17         Q ← X R 79779.53 H
Creutzberg, 1966; Carroll and Mitchell, 1975
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
P4 (1Σu+) (79827) 18          P4 ← X 79804
Carroll and Mitchell, 1975
M4 (1Σu+) (78271) (705) (5) 19        M4 ← X R (78233) 20
Carroll and Mitchell, 1975
H5 (1Πu) (78256) 21          H5 ← X 78233
Carroll and Mitchell, 1975
K4 (1Πu) (77968) [732] 13         K4 ← X 77944
Carroll and Mitchell, 1975
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
O 77475 529 H 2        O ← X R 77349 H
missing citation
N 1Σu+ 77286.7 [641.76] Z (29.7)  0.2984 22 0.00504  [3.1E-7]  1.9099 N ← X R 77240.23 Z
Creutzberg, 1966; Carroll and Mitchell, 1975
L (1Πu) 73593 [672.2] H         L ← X R 73539.3 H
Creutzberg, 1966; Carroll and Mitchell, 1975
E5 (1Πu) 73385 685 H 2.7        E5 ← X R 73337
Carroll and Mitchell, 1975
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
M 1Σu+ 73168.0 684.0 23 H 2.97  0.2802 23 0.0016    1.971 M ← X R 73119.6 23 H
Creutzberg, 1966; Carroll and Mitchell, 1975
K 1Πu 72288 [701.7] HQ (5)  [0.2704] 24 22     [2.006] K ← X R 72253.3 Z
Creutzberg, 1966; Carroll and Mitchell, 1975
Numerous diffuse irregularly spaced "lines" 69900 - 70400 cm-1, no assignments.
Creutzberg, 1966
H (1Πu) (68960) 25          H ← X 68940
Creutzberg, 1966; Carroll and Mitchell, 1975
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
I 1Πu [68849.3]    [0.2541]   [2.5E-7]  [2.070] I ← X R 68459.63 Z
Creutzberg, 1966
G 1Σu+ 66313.37 694.12 Z 4.182  0.29730 22 0.00195  [2.25E-7]  1.9135 G ↔ X R 66269.71 Z
Dressler, 1955; missing citation
E 1Πu 59446.21 700.66 HQ 2.92  [0.28072] 22   [1.84E-7]  [1.9692] E ↔ X 26 R 59406.14 Z
Dressler, 1955; missing citation
B 1Πu 50845.9 [358.96] 27 Z 28  [0.2268] 27 29  [3.2E-7]  [2.191] B → A R 16203.71 27 Z
Malicet, Brion, et al., 1973; missing citation
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
c 3Πu2 47176.8 393.67 Z 3.849 30 -.0915 0.2190 31 0.0024  2.5E-7  2.229 c → b 32 R 18721.5 Z
Brion, da Paz, et al., 1971; missing citation; Carroll and Nulty, 1976; missing citation
c 3Πu1 47159.1 393.67 Z 3.849 30 -.0915 0.2190 31 0.0024  2.5E-7  2.229 c → b 32 R 18836.4 Z
Brion, da Paz, et al., 1971; missing citation; Carroll and Nulty, 1976; missing citation
c 3Πu0 47139.2 393.67 Z 3.849 30 -.0915 0.2190 31 0.0024  2.5E-7  2.229 c → b 32 R 18944.6 Z
Brion, da Paz, et al., 1971; missing citation; Carroll and Nulty, 1976; missing citation
C 1Σu+ 46941.26 473.93 Z 2.340 33 0.0066 0.24211 34 22 0.00175 3.3E-6 2.57E-7  2.1204 C ↔ X R 46787.97 Z
missing citation; missing citation; Marais and Verleger, 1950; Creutzberg, 1966; missing citation; missing citation
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
A 1Πg 34515.25 618.95 Z 3.00  0.27524 0.00168  2.2E-7  1.9887 A → X R 34434.30 Z
missing citation; Verma and Broida, 1970; Malicet, Brion, et al., 1973; missing citation
b 2Πg2 28329.6 644.66 Z 3.213 35  0.2805 0.00178  2.0E-7  1.970 b → a 32 V 9574.8 Z
Mrozowski and Santaram, 1967; Brion and Malicet, 1975; missing citation; Carroll and Nulty, 1976
b 2Πg1 28197.0 644.66 Z 3.213 35  0.2805 0.00178  2.0E-7  1.970 b → a 32 V 9442.2 Z
Mrozowski and Santaram, 1967; Brion and Malicet, 1975; missing citation; Carroll and Nulty, 1976
b 2Πg0 28068.9 644.66 Z 3.213 35  0.2805 0.00178  2.0E-7  1.970 b → a 32 V 9314.1 Z
Mrozowski and Santaram, 1967; Brion and Malicet, 1975; missing citation; Carroll and Nulty, 1976
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
b' 3Σu- 28503.4 36 604.48 Z 2.2  0.2584 37 0.0014  1.7E-7  2.052 b' → X R 28415.4 Z
Mrozowski and Santaram, 1967; missing citation
a 3Σ+ 18794.5 565.17 H 2.75  B1=0.25033 38   D1=3.3E-7  r1=2.0853 (a-X) 18686.7 39
X 1Σg+ 0 780.77 Z 2.835 40 -0.00462 0.30362 22 0.00149 41 -2.7E-6 1.88E-7  1.8934  

Notes

1Core configuration as suggested by Bulgin, Dyke, et al., 1976 on the basis of ab initio calculations; Carroll and Mitchell Carroll and Mitchell, 1975 proposed... 4σu2gu3g.
2Carrol and Mitchel's Rydberg series Gn, Hn, Pn, Rn converging to A 2Σg+(v=0):
3v=87179 - R/(n-0.062-0.633/n*2)2, n=4(R4),5...21.
4v=87179 - R/(n-0.155-0.179/n*2)2, n=4(P4),5...14.
5v=87179 - R/(n-1.468-0.475/n*2)2, n=4(H),5(H5),6...28.
6v=87179 - R/(n-1.660-0.252/n*2)2, n=4(G),5(N),6(G6),7...12.
7Carrol and Mitchel's Rydberg series En, Kn, Mn, Ln converging to X2 2Π1/2(v=1):
8v~85895 - R/(n+0.04)2, n=3(L),4. Fragments of series with v'=0 (V =85229) and with v'>1.
9v~85895 - R/(n+0.03)2, n=3(M),4(M4),5(S). Fragments of series with v'=0 (V =85229) and with v'>1.
10v~85895 - R/(n+0.12)2, n=3(K),4...10. Fragments of series with v'=0 (V =85229) and with v'>1.
11v~85895 - R/(n+1.93)2, n=4(E),5(E5),6. Fragments of series with v'=0 (V =85229) and with v'>1.
12Observed to v'=2.
13Diffuse bands.
14Observed to v'=4.
15Assigned as 0-0 band by Creutzberg, 1966; reassigned as 1-0 band by Carroll and Mitchell, 1975 [third member of the Mn(v'=1) Rydberg series].
16Broad diffuse bands.
170-0 and 1-1 bands only.
18Broad band.
19Only v'=1 and 3 (diffuse) observed.
200-0 band obscured by H5← X 0-0.
21Very broad band.
22RKR potential functions Singh and Rai, 1966, Rao and Lakshman, 1970.
23Following Carroll and Mitchell, 1975 the v' numbering of Creutzberg, 1966 has been increased by one unit.
24All lines of this system are diffuse; the diffuseness is largest for v'=3 and 4 such that the rotational structure can no longer be recognized. The broadening is independent of J; the state causing the predissociation is probably 1Πu.
25Very intense diffuse band, width ~80 cm-1.
26Franck-Condon factors Rao and Lakshman, 1970.
27The assignment of v'=0 to the lowest observed level is arbitrary.
28ΔG(3/2) = 352.71.
29B1 = 0.2209, B2 = 0.2171.
30 Carroll and Nulty, 1976; slightly different constants in missing citation.
31Perturbations by C 1Σu+. The observation of extra lines enables the relative position of singlet and triplet levels to be determined Carroll and Nulty, 1976; very similar results have been obtained by Brion, Malicet, et al., 1976, missing citation.
32Franck-Condon factors Brion and Malicet, 1976.
33Constants from Creutzberg, 1966, but see missing citation whose deperturbation of the C state levels (see 34) leads to Te = 46945.57, ωe = 472.81, ωexe = 2.246, ωeye = +0.004122.
34Strong vibrational perturbations for v=1,2,3,5 Herzberg, 1932 and many rotational perturbations Marais, 1946, Marais and Verleger, 1950, Naude and Verleger, 1950, Creutzberg, 1966, Brion, Malicet, et al., 1976, 2 due to interaction with levels of c 3Πu see missing citation. Breaking off in emission (predissociation) above J=58 of v=10 and J=34 of v=11; the corresponding dissociation limit is 4S + 2D at 51959 ± 25 cm-1. A second predissociation indicated by diffuseness in absorption begins at v=17 and reaches a maximum for low J values of v=19 Creutzberg, 1966.
35ωeye < 0.001 cm-1 Carroll and Nulty, 1976; slightly different constants in missing citation.
36Recalculated; Brion, Malicet, et al., 1974 give 28507.74 which probably refers to data obtained from band heads rather than band origins.
37Spin splitting constants λ = +3.20, γ = -0.001.
38Spin splitting constants λ1= -3.21, γ1= -0.003 Brion and Malicet, 1976.
39Not observed; indirectly derived Carroll and Nulty, 1976 from perturbations in c 3Πu; see 31.
40 missing citation; slightly different constants in Marais and Verleger, 1950 and Creutzberg, 1966.
41Constants recalculated from the data of Herzberg, 1932, Douglas and Rao, 1958, Creutzberg, 1966, Dixit, 1968. Higher Bv values not included in the reevaluation may be found in Herzberg, 1932, Marais and Verleger, 1950.
42From the predissociation limit in C 1Σu+ which according to Herzberg, 1932 is equal to the dissociation limit 4S+2D. The latest thermochemical (mass-spectrometric) value is 5.04 eV Kordis and Gingerich, 1973 eliminating the possibility that the predissociation limit corresponds to 2D+2D as suggested by Vaidyan and Santaram, 1971.
43From the photoelectron spectrum Bulgin, Dyke, et al., 1976 which shows partially resolved peaks at 10.53 and 10.55 eV corresponding to X1 2Π3/2 and X2 2Π1/2, respectively. Subtraction of the estimated doublet splitting in the X 2Π ground state [~ 260 cm-1, see ref. 6 of P2+] from the Rydberg series limit at 85229 cm-1 Carroll and Mitchell, 1975 gives l0.535 eV.

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Constants of diatomic molecules, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

O'Hair, Krempp, et al., 1992
O'Hair, R.A.J.; Krempp, M.; Damrauer, R.; Depuy, C.H., Gas-Phase Ion Chemistry of HP2(-), FP2(-), and HP2(+), Inorg. Chem., 1992, 31, 11, 2092, https://doi.org/10.1021/ic00037a021 . [all data]

Jones, Ganteför, et al., 1995
Jones, R.O.; Ganteför, G.; Hunsicker, S.; Pieperhoff, P., Structure and Spectroscopy of Phosphorous Cluster anions: Theory (simulated annealing) and Experiment (Photoelectron Detachment), J. Chem. Phys., 1995, 103, 22, 9549, https://doi.org/10.1063/1.469969 . [all data]

Snodgrass, Coe, et al., 1985
Snodgrass, J.T.; Coe, J.V.; Freidhoff, C.B.; McHugh, K.M.; Bowen, K.H., Negative ion photoelectron spectroscopy of P2-, Chem. Phys. Lett., 1985, 122, 352. [all data]

Feldman, Rackwitz, et al., 1977
Feldman, D.; Rackwitz, R.; Kaiser, H.J.; Heincke, E., Photodetachment bei einigen neagtiven molekulionen: P2-, As2-, CH2-, CH3-, S3-, Z. Naturforsch. A:, 1977, 32, 600. [all data]

Bennett, Margrave, et al., 1974
Bennett, S.L.; Margrave, J.L.; Franklin, J.L., High temperature negative ions. Electron impact study of tetratomic phosphorous vapor, J. Chem. Phys., 1974, 61, 1647. [all data]

Balducci, Gigli, et al., 1981
Balducci, G.; Gigli, G.; Guido, M., Dissociation energies of the molecules CrPO2(g) and CoO(g) by high-temperature mass spectrometry, J. Chem. Soc. Faraday Trans. 2, 1981, 77, 1107. [all data]

Huber and Herzberg, 1979
Huber, K.P.; Herzberg, G., Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules,, Van Nostrand Reinhold Co., 1979, ,1. [all data]

Carroll and Mitchell, 1975
Carroll, P.K.; Mitchell, P.I., The absorption spectrum of diatomic phosphorus between 1370 and 600 A, Proc. Roy. Soc. London A, 1975, 342, 93. [all data]

Gingerich, Cocke, et al., 1974
Gingerich, K.A.; Cocke, D.L.; Kordis, J., Gaseous phosphorus compounds. X. Mass spectrometric determination of the dissociation energies of arsenic and bismuth monophosphides, J. Phys. Chem., 1974, 78, 603. [all data]

Drowart, Myers, et al., 1973
Drowart, J.; Myers, C.E.; Szwarc, R.; Vander Auwera-Mahieu, A.; Uy, O.M., The dissociation energies of the molecules PS, PSe, and PTe, High Temp. Sci., 1973, 5, 482. [all data]

Potts, Glenn, et al., 1972
Potts, A.W.; Glenn, K.G.; Price, W.C., General discussion, Faraday Discuss. Chem. Soc., 1972, 54, 65. [all data]

Smoes, Myers, et al., 1971
Smoes, S.; Myers, C.E.; Drowart, J., Determination of the atomization energies of CP, C2P, CP2 and C2P2 by high temperature Knudsen cell mass spectrometry, Chem. Phys. Lett., 1971, 8, 10. [all data]

Gingerich and Piacente, 1971
Gingerich, K.A.; Piacente, V., Gaseous phosphorus compounds. IV. Thermodynamic study of gallium monophosphide with a mass spectrometer and dissociation energy of aluminum diphosphide, J. Chem. Phys., 1971, 54, 2498. [all data]

Donovan and Strachan, 1971
Donovan, R.J.; Strachan, P., Vacuum U.-V. spectra of transient molecules and radicals, J. Chem. Soc. Faraday Trans., 1971, 67, 3407. [all data]

DeMaria, Gingerich, et al., 1968
DeMaria, G.; Gingerich, K.A.; Piacente, V., Vaporization of aluminum phosphide, J. Chem. Phys., 1968, 49, 4705. [all data]

Carlson, Kohl, et al., 1968
Carlson, K.D.; Kohl, F.J.; Uy, O.M., Mass spectrometry of molecules of the nitrogen family, Advan. Chem. Ser., 1968, 72, 245. [all data]

Gutbier, 1961
Gutbier, H., Massenspektrometrische Untersuchungen der Verdampfungsvorgange bei einigen Verbindungen mit Zinkblende-Gitter im Temperaturbereich um 1000 degree K, Z. Naturforsch. A:, 1961, 16, 268. [all data]

Bulgin, Dyke, et al., 1976
Bulgin, D.K.; Dyke, J.M.; Morris, A., HeI photoelectron spectrum of the P2(X1Σ+) molecule, J. Chem. Soc. Faraday Trans. 2, 1976, 72, 2225. [all data]

Creutzberg, 1966
Creutzberg, F., The absorption spectrum of the P2 molecule in the vacuum ultraviolet, Can. J. Phys., 1966, 44, 1583. [all data]

Dressler, 1955
Dressler, K., Ultraviolett- und Schumannspektren der neutralen und ionisierten Molekule PO, PS, NS, P2, Helv. Phys. Acta, 1955, 28, 563. [all data]

Malicet, Brion, et al., 1973
Malicet, J.; Brion, J.; Guenebaut, H., Analyse de quatre bandes d'une nouvelle transition 1Π-1Π du radical P2, C.R. Acad. Sci. Paris, Ser. C, 1973, 276, 991. [all data]

Brion, da Paz, et al., 1971
Brion, J.; da Paz, M.; Mongin, J.; Guenebaut, H., Analyse rotationnelle de quatre nouvelles bandes d'un systeme electronique visible du radical P2, C.R. Acad. Sci. Paris, Ser. B, 1971, 272, 999-1002. [all data]

Carroll and Nulty, 1976
Carroll, P.K.; Nulty, A.T., Rotational analysis of the visible system of P2 and the location of the triplet states, J. Phys. B:, 1976, 9, 427. [all data]

Marais and Verleger, 1950
Marais, E.J.; Verleger, H., The rotational structure of the ultraviolet band system of the P2 molecule, Phys. Rev., 1950, 80, 429. [all data]

Verma and Broida, 1970
Verma, R.D.; Broida, H.P., Spectral study of the phosphorus glow, Can. J. Phys., 1970, 48, 2991. [all data]

Mrozowski and Santaram, 1967
Mrozowski, S.; Santaram, C., Electronic spectra of P2, As2, and Sb2 molecules, J. Opt. Soc. Am., 1967, 57, 522. [all data]

Brion and Malicet, 1975
Brion, J.; Malicet, J., Nouvelle transition du radical P2 analogue au premier systeme positif de l'azote, J. Phys. B:, 1975, 8, 164. [all data]

Singh and Rai, 1966
Singh, R.B.; Rai, D.K., Potential curves for some diatomic molecules: P2, PN, SiN, NBr, BaO, BeF, SiF & SnF, Indian J. Pure Appl. Phys., 1966, 4, 102. [all data]

Rao and Lakshman, 1970
Rao, T.V.R.; Lakshman, S.V.J., Potential energy curves, r-centroids & Franck-Condon factors for the bands of P2 molecule, Indian J. Pure Appl. Phys., 1970, 8, 617. [all data]

Brion, Malicet, et al., 1976
Brion, J.; Malicet, J.; France, M.; Lafore, M., Peturbations dans les etats C1Σu+ et c3Πu du radical P2, C.R. Acad. Sci. Paris, Ser. C, 1976, 283, 171. [all data]

Brion and Malicet, 1976
Brion, J.; Malicet, J., Spectre d'emission du radical P2: transitions c3Πu-b3Πg et b3Πg-a3Σu+, J. Phys. B:, 1976, 9, 2097. [all data]

Herzberg, 1932
Herzberg, G., Bandenspektrum, pradissoziation und struktur des P2-molekuls, Ann. Phys. (Leipzig), 1932, 15, 677. [all data]

Marais, 1946
Marais, E.J., Perturbations in the ultraviolet band spectrum of P2, Phys. Rev., 1946, 70, 499. [all data]

Naude and Verleger, 1950
Naude, S.M.; Verleger, H., The perturbations in the ultraviolet band spectrum of the phosphorus molecule P2, Phys. Rev., 1950, 80, 432. [all data]

Brion, Malicet, et al., 1976, 2
Brion, J.; Malicet, J.; Guenebaut, H., Spectre d'emission du radical P2: etude des transitions C1Σu+-X1Σg+, A1Πg-X1Σg+ et B1Πu-A1Πg, Can. J. Phys., 1976, 54, 362. [all data]

Brion, Malicet, et al., 1974
Brion, J.; Malicet, J.; Guenebaut, H., Spectre d'emission du radical P2: etude de la transition b'3Σu- - X1Σg+, Can. J. Phys., 1974, 52, 2143-2149. [all data]

Douglas and Rao, 1958
Douglas, A.E.; Rao, K.S., A new band system of the P2 molecule analogous to the Lyman-Birge-Hopfield bands of N2, Can. J. Phys., 1958, 36, 565. [all data]

Dixit, 1968
Dixit, M.N., Rotational analysis of some bands of C1Σu+-X1Σg+ system of P2 molecule involving low v', v" values, Proc. Indian Acad. Sci. Sect. A, 1968, 66, 325. [all data]

Kordis and Gingerich, 1973
Kordis, J.; Gingerich, K.A., Mass spectroscopic investigation of the equilibrium dissociation of gaseous Sb2, Sb3, Sb4, SbP, SbP3, and P2, J. Chem. Phys., 1973, 58, 5141. [all data]

Vaidyan and Santaram, 1971
Vaidyan, V.K.; Santaram, C., Dissociation energy & potential energy curves of P2, Indian J. Pure Appl. Phys., 1971, 9, 1022. [all data]


Notes

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