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Experimental data for BrNO (Nitrosyl bromide)

22 02 02 11 45
INChI INChIKey SMILES IUPAC name
InChI=1S/BrNO/c1-2-3 BMNDJWSIKZECMH-UHFFFAOYSA-N BrN=O
State Conformation
1A' CS
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation 82.13   kJ mol-1 webbook
Hfg(0K) enthalpy of formation     kJ mol-1 webbook
Entropy (298.15K) entropy 273.53   J K-1 mol-1 webbook
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference
1 A' 1799 1832 1969Laa/Jon:489      
2 A' 543 548 1969Laa/Jon:489      
3 A' 267 269 1969Laa/Jon:489      

vibrational zero-point energy: 1304.2 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for BrNO (Nitrosyl bromide).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
2.85199 0.12499 0.11962 1994Esp/Tam:313

Calculated rotational constants for BrNO (Nitrosyl bromide).
Product of moments of inertia moments of inertia
112352.5amu3Å6   5.14458736990687E-115gm3 cm6
Geometric Data
picture of Nitrosyl bromide

Point Group Cs


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rNBr 2.140 0.002 1 2 1970Mil/Mit:2414
rNO 1.146 0.010 1 3 1970Mil/Mit:2414
aONBr 114.5 0.5 2 1 3 1970Mil/Mit:2414

Cartesians
Atom x (Å) y (Å) z (Å)
N1 0.4844 -1.3473 0.0000
Br2 0.0000 0.7372 0.0000
O3 -0.4238 -2.0462 0.0000

Atom - Atom Distances bond lengths
Distances in Å
  N1 Br2 O3
N1   2.14001.1460
Br2 2.1400   2.8155
O3 1.14602.8155  

Calculated geometries for BrNO (Nitrosyl bromide).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle
Br2 N1 O3 114.500

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
N=O 1
N-Br 1

Connectivity
Atom 1 Atom 2
N1 Br2
N1 O3
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A'

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
10.190 0.050     webbook
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 1A' Cs True           Cs 2 3
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for BrNO (Nitrosyl bromide).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 1A' Cs True       Cs 2 3

Calculated electric quadrupole moments for BrNO (Nitrosyl bromide).

References
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squib reference DOI
1969Laa/Jon:489 J Laane, LH Jones, RR Ryan, LB Asprey "Vibrational Spectra and Force Constants for Iostopic Species of Nitrosyl Bromide" J. Mol. Spect. 30, 489-497 (1969) 10.1016/0022-2852(69)90280-x 
1970Mil/Mit:2414 DJ Millen, D Mitra "Microwave spectrum, structure and nuclear quadrupole coupling coefficients of nitrosyl bromide" Trans. Faraday Soc., 1970, 66, 2414-2419 10.1039/TF9706602414
1994Esp/Tam:313 CD Esposti, F Tamassia, G Cazzoli "Centrifugal Distortion and Hyperfine Structure Analysis of the Millimeter-Wave Spectrum of Nitrosyl Bromide" J. Mol. Spect. 163, 313-325 (1994) 10.1006/jmsp.1994.1028
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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