6533b855fe1ef96bd12b1a6c

RESEARCH PRODUCT

As(III)/Sb(III)/Bi(III)–halide distances and stretching vibrations. An application of the Varshni relationship upon hypervalent group 15 compounds

Martin DrägerElmar BräuAndrea Zickgraf

subject

ChemistryInorganic chemistryHypervalent moleculeHalideAtomic and Molecular Physics and OpticsAnalytical ChemistryBond lengthsymbols.namesakeCrystallographyGroup (periodic table)symbolsRaman spectroscopyInstrumentationSpectroscopy

description

Abstract A Varshni treatment between stretching frequencies and bond lengths is given for 16 heterocycles of the types Hal–M(SCH 2 CH 2 ) 2 X and Hal–M(CH 2 CH 2 CH 2 ) 2 X (M=As/Sb/Bi, Hal=Cl/Br/I, X=O, S, NR). The intensities of the Raman emissions for the M–Hal bonds increase in the following order: Cl≪Br −1/2 , decrease in the following order: Cl>Br≫I. Practically, the Varshni constants are used to estimate the complementary quantity, stretching frequency or bond length, in 35 cases.

https://doi.org/10.1016/s1386-1425(97)00212-6