Accession Number:

ADA409816

Title:

Matrix Isolation of Boron and Carbon Vapor. Control of Cluster Formation During Preparation and Annealing

Descriptive Note:

Corporate Author:

AIR FORCE RESEARCH LAB EDWARDS AFB CA SPACE AND MISSILE PROPULSION DIV

Report Date:

2000-03-15

Pagination or Media Count:

10.0

Abstract:

The formation and recombination of small boroncarbon clusters were studied by quantitative Fourier transform infrared FTIR spectroscopy. Samples were prepared by evaporation of powder mixtures from a resistively heated oven 3000 K and isolated at 10 K in solid argon C3 and BC2 disappeared entirely over the course of several annealings. Yields of all the larger clusters BiCnj, II 4 J 0, 1, 2 increased during annealing. Clusters within 4 are linear, with the boron atoms of the J land 2 clusters capping the ends of carbon chains B2Cnn-2 cluster are inert.

Subject Categories:

  • Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE