Raman band of matrix isolated NaMSeN clusters

被引:13
作者
Herwig, C [1 ]
Schnell, M [1 ]
Becker, JA [1 ]
机构
[1] Univ Hannover, Inst Phys Chem & Elektrochem, D-30167 Hannover, Germany
关键词
D O I
10.1016/j.cplett.2004.01.020
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Selenium clusters are doped with sodium atoms in the reaction zone of a dual laser vaporization source. Product clusters Se-N and Na2SeN with N = 4-8 are deposited in a nitrogen matrix and investigated by Raman spectroscopy. Beside the Raman band of pure SeN clusters, a new intense band between 165 and 225 cm(-1) is observed. Within a simple model of dynamical charge transfer the new band is attributed to certain vibrational modes with considerable changes of Na-Se bond lengths. The assignment is confirmed by density functional calculations. A bonding model for the Na2SeN clusters containing horseshoe shaped polyanionic selenium chains is developed. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:462 / 466
页数:5
相关论文
共 35 条
[1]  
[Anonymous], 1974, COOPER
[2]  
[Anonymous], 2000, HDB CHEM PHYS
[3]  
Barzdain P., 1968, J STRUCT CHEM, V9, P442, DOI 10.1007/BF00738836
[4]   ELECTRONIC AND GEOMETRICAL STRUCTURE OF SE5, SE6, SE7, AND SE8 [J].
BECKER, J ;
RADEMANN, K ;
HENSEL, F .
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 1991, 46 (05) :453-461
[5]   SYNTHESIS AND CRYSTAL-STRUCTURE OF THE DIRUBIDIUMPENTACHALCOGENIDES RB2S5 AND RB2SE5 [J].
BOTTCHER, P .
ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 1979, 150 (1-4) :65-73
[6]   INFRARED AND VISIBLE SPECTRA OF SMALL SELENIUM CLUSTERS (N = 2, 3, 4) IN SOLID ARGON [J].
BRABSON, GD ;
ANDREWS, L .
JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (23) :9172-9177
[7]  
Brodsky M., 1975, LIGHT SCATTERING SOL, V8
[8]   Theory of zeolite supralattices: Se in zeolite Linde type A [J].
Demkov, AA ;
Sankey, OF .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (46) :10433-10457
[9]  
ELNAKAT J, 1991, J CHEM SOC CHEM COMM, P746
[10]  
FOPPL VH, 1962, Z ANORG ALLG CHEM, V314, P12