Potassium bromide | SSHADE

Molecule

Name: Potassium bromide

Name and identifiers

IUPAC name: Potassium bromide
Secondary names: KBr
InChI: InChI=1S/BrH.K/h1H;/q;+1/p-1
InChI key: IOLCXVTUBQKXJR-UHFFFAOYSA-M
CAS number: 7758-02-3

Structure and atomic composition

Formula: $K^+.Br^-$
Chemical formula: KBr
Structural formula: [K+].[Br-]
Charge: 0
Unpaired electrons: 0

	Atom	Name	Number
	$K^+$	Potassium(1+) cation	1
	$Br^-$	Bromide anion	1

Isotopic composition

Isotope mixture type: terrestrial abundance

Nuclear spin isomers

Spin type: unique

Molar mass: 119.002 $g/mol$
State STP: solid
State NTP: solid
Protic: aprotic
Polarity: polar
Dipole: 10.41 $D$

Fundamental vibration modes

Molecule symmetry

Cinfv

Case

diatomic

Vibrations number

1

Vibrations

Label	Mode	Bond	Symmetry	Degeneracy	Fundamental frequency	Observed frequency	Observed frequency	Harmonic frequency	Activity IR	Activity Raman	Strength	Comments
V1	stretching	$K^+.Br^-$	$\Sigma+$	no	211.0			213.0	active	active		for $^{39}K^{79}Br$

Comments

Data from NIST CCCBDB: https://cccbdb.nist.gov

Chemical functions and bonds

Chemical bonds

	Bond	Number
	$K^+ \cdot Br^-$	1