Fourier transform infrared spectroscopy of the ν2 vibration of BC2 in Ar at 10 K

Abstract

The products of vaporization of boron/carbon mixtures around 3000 K were trapped in argon matrices at 10 K and their Fourier transform infrared spectra were measured. Analysis of the spectra combined with the predictions of density functional theory (DFT) calculations have resulted in the assignment of a previously observed vibration at 1194.4 cm−1 to the ν2 fundamental of cyclic BC2, which is effectively symmetric. The assignment is supported by 10B, 11B, and 13C isotopic data and is in good agreement with the theoretical predictions.

Vibrational spectra of cyclic C6 in solid argon

“…The vapors escaping through a small orifice were co-deposited with continuously flowing argon onto a Csl substrate maintained at 10 K. The procedures followed in the initial heating of the oven were similar to those used in our matrix study of BC 2 [19], whereas other aspects of the experiment are described elsewhere [2]. Here we focus on the method of cycling the oven temperature during the course of a deposition, which produced a matrix with alternating layers of high carbon density and nearly pure argon.…”

“…The procedure for recording the spectra and annealing the matrices has been described previously [2,19].…”

Summer Research Program - 1998 High School Apprenticeship Program Volume 15C Wright Laboratory

“…The basic principle of IR spectroscopy is that the energies absorbed by these molecules are specific to the composition of atoms and bonds 7 . Therefore, characteristics of the molecules, like bond type and structure, can be determined from the IR spectra.…”

Theoretical study of hydrogen adsorption on Ca-decorated C48B12 clusters

“…41,42 B-C mixed nanostructures have been a research focus, which are also lightweight and porous. [43][44][45][46][47][48][49][50][51][52][53] Experimentally, the structures of small B-C clusters have been determined by electron spin resonance spectroscopy and Fourier transform infrared spectroscopy. 45,46 Smalley et al have successfully synthesized boron-substituted fullerenes C 60−n B n with 1 ≤ n ≤ 6.…”

“…[43][44][45][46][47][48][49][50][51][52][53] Experimentally, the structures of small B-C clusters have been determined by electron spin resonance spectroscopy and Fourier transform infrared spectroscopy. 45,46 Smalley et al have successfully synthesized boron-substituted fullerenes C 60−n B n with 1 ≤ n ≤ 6. 47 Theoretically, Wu et al revealed novel two-dimensional structures of BC 3 and B 2 C, and showed that two-dimensional C-rich B-C compounds adopt the graphene-like honeycomb structure and B-rich compounds consist of different arrangements of hexagons and triangles.…”