1,2-DIMETHOXYETHANE COMPLEXES OF MONCL3 AND WNCL3 - THE CRYSTAL-STRUCTURE OF [MONCL3-CENTER-DOT-DME]

被引:7
|
作者
RENTSCHLER, E [1 ]
DEHNICKE, K [1 ]
机构
[1] UNIV MARBURG,FACHBEREICH CHEM,D-35032 MARBURG,GERMANY
关键词
DME COMPLEXES; NITRIDE CHLORIDES OF MOLYBDENUM AND TUNGSTEN; SYNTHESIS; CRYSTAL STRUCTURE;
D O I
10.1515/znb-1993-1225
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The complexes [MoNCl3.DME] and [WNCl3.DME] (DME = 1,2-dimethoxyethane) have been prepared by the reaction of the nitride chlorides MNCl(3) with equimolar amounts of DME in CH2Cl2 suspensions. They form orange-red, moisture sensitive crystals, which are soluble in organic solvents. The molybdenum complex has been characterized by a crystal structure determination. Space group Pbca, Z = 8, structure solution with 1781 observed unique reflections, R = 0.031. Lattice dimensions at -60 degrees C: a = 738.6(1), b = 1182.2(1), c = 2314.1(1) pm. [MoNCl3 . DME] forms monomeric complexes with chelating DME molecules and Mo-O bond lengths of 215.4(4) and 247.4(4) pm, the longer one being in trans-position of the nitrido ligand. The MoN bond length of 163.3(5) pm suggests a triple bond.
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页码:1841 / 1844
页数:4
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