CHARACTERIZATION OF METAL-CARBON NANOCRYSTALS IN THE GAS-PHASE - FT-ICR STUDIES OF V14C12+ AND V14C13+

被引：12

作者：

BYUN, YG ^{[1
]}

YEH, CS ^{[1
]}

XU, YC ^{[1
]}

FREISER, BS ^{[1
]}

机构：

[1] PURDUE UNIV,HC BROWN LAB CHEM,W LAFAYETTE,IN 47907

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1995年 / 117卷 / 32期

关键词：

D O I：

10.1021/ja00137a001

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A compact supersonic source is used in conjunction with a Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometer to generate and study the gas-phase reactivities of V14C12+ and V14C13+ Sequential reactions with up to 8 H2O molecules result in the formation of V14C12,13(OH)(2)(H2O)(6)(+) and V14C13(OH)(4)(H2O)(4)(+) by loss of H-2 or attachment of H2O. Both ions are observed to attach up to 8 CH3CN molecules. In light of an earlier study which indicated that Nb4C4+ has a slightly distorted 2 x 2 x 2 cubic structure, these results provide evidence for the proposed 3 x 3 x 3 cubic structure of V14C13+ where the 8 metals in the corners are the active binding sites. The similarity of the reactivity of V14C12+ suggests an analogous structure.

引用

页码：8299 / 8303

页数：5

共 45 条

[1] EMPIRICAL-METHODS FOR DETERMINATION OF IONIZATION GAUGE RELATIVE SENSITIVITIES FOR DIFFERENT GASES [J].