Bromine isocyanate
- Formula: CBrNO
- Molecular weight: 121.921
- IUPAC Standard InChIKey: MLJXWZIVGBBOQZ-UHFFFAOYSA-N
- CAS Registry Number: 3644-72-2
- Chemical structure:
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Vibrational and/or electronic energy levels
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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: Marilyn E. Jacox
State: ?
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
Tx = 34200 | gas | Gottardi, 1972 | |||||
State: X
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a' | 1 | NCO a-stretch | 2198.0 | vs | gas | IR | Gottardi, 1972 DeVore, 1987 Gerke, Schatte, et al., 1989 |
1 | NCO a-stretch | 2196 | Ne | IR | Gerke, Schatte, et al., 1989 | ||
1 | NCO a-stretch | 2191.9 | Ar | IR | Gerke, Schatte, et al., 1989 | ||
2 | NCO s-stretch | 1294.5 | w | gas | IR | Gottardi, 1972 DeVore, 1987 Gerke, Schatte, et al., 1989 | |
2 | NCO s-stretch | 1290.9 | Ne | IR | Gerke, Schatte, et al., 1989 | ||
2 | NCO s-stretch | 1296.9 | Ar | IR | Gerke, Schatte, et al., 1989 | ||
3 | NCO bend | 687.7 | w | gas | IR | Gottardi, 1972 DeVore, 1987 Gerke, Schatte, et al., 1989 | |
3 | NCO bend | 691.1 | Ne | IR | Gerke, Schatte, et al., 1989 | ||
3 | NCO bend | 686.6 | Ar | IR | Gerke, Schatte, et al., 1989 | ||
4 | NBr stretch | 506.0 | w | Ne | IR | Gerke, Schatte, et al., 1989 | |
5 | BrNC bend | 137.4 | w | Ne | IR | Gerke, Schatte, et al., 1989 | |
a | 6 | NCO bend | 569.9 | w | gas | IR | Gottardi, 1972 DeVore, 1987 Gerke, Schatte, et al., 1989 |
6 | NCO bend | 572.2 | Ne | IR | Gerke, Schatte, et al., 1989 | ||
6 | NCO bend | 563.1 | Ar | IR | Gerke, Schatte, et al., 1989 | ||
Additional references: Jacox, 1994, page 198; Jemson, Lewis-Bevan, et al., 1984; Jemson, Lewis-Bevan, et al., 1986; Hensel, Lam, et al., 1992
Notes
w | Weak |
vs | Very strong |
x | Energy separation between the band maximum of the excited electronic state and the v = 0 level of the ground state. |
References
Go To: Top, Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Gottardi, 1972
Gottardi, W.,
Darstellung und Eigenschaften von Bromisocyanat,
Monatsh. Chem., 1972, 103, 4, 1150, https://doi.org/10.1007/BF00905191
. [all data]
DeVore, 1987
DeVore, T.C.,
The infrared spectra of the halogen isocyanate and thiocyanate vapor molecules,
J. Mol. Struct., 1987, 162, 3-4, 287, https://doi.org/10.1016/0022-2860(87)87060-6
. [all data]
Gerke, Schatte, et al., 1989
Gerke, M.; Schatte, G.; Willner, H.,
Bromine isocyanate, BrNCO, and its 15N, 13C, 18O isotopically enriched species: Assignment of vibrational spectra, force field, and structure,
J. Mol. Spectrosc., 1989, 135, 2, 359, https://doi.org/10.1016/0022-2852(89)90162-8
. [all data]
Jacox, 1994
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]
Jemson, Lewis-Bevan, et al., 1984
Jemson, H.M.; Lewis-Bevan, W.; Westwood, N.P.C.; Gerry, M.C.L.,
The microwave spectrum of bromine isocyanate, Brnco: Determination of rotational constants from quadrupole hyperfine structure,
Chem. Phys. Lett., 1984, 108, 5, 496, https://doi.org/10.1016/0009-2614(84)85187-8
. [all data]
Jemson, Lewis-Bevan, et al., 1986
Jemson, H.M.; Lewis-Bevan, W.; Westwood, N.P.C.; Gerry, M.C.L.,
The microwave spectrum and structure of the unstable molecule bromine isocyanate, BrNCO,
J. Mol. Spectrosc., 1986, 118, 2, 481, https://doi.org/10.1016/0022-2852(86)90184-0
. [all data]
Hensel, Lam, et al., 1992
Hensel, K.D.; Lam, M.E.; Gerry, M.C.L.; Willner, H.,
The microwave spectrum of BrNC18O and the structure of bromine isocyanate,
J. Mol. Spectrosc., 1992, 151, 1, 184, https://doi.org/10.1016/0022-2852(92)90014-F
. [all data]
Notes
Go To: Top, Vibrational and/or electronic energy levels, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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