NEW PARAMAGNETIC PYRAZOLE COMPLEXES OF TRIS(3,5-DIMETHYLPYRAZOLYL)BORATO MOLYBDENUM NITROSYL CHLORIDE AND IODIDE AND THE STRUCTURE OF [MO(NO)(HB(3,5-ME2C3HN2)3)CL(3,5-ME2C3HN2H)]

被引:8
|
作者
WLODARCZYK, A
KUREK, SS
MAHER, JP
BATSANOV, AS
HOWARD, JAK
MCCLEVERTY, JA
机构
[1] UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,AVON,ENGLAND
[2] KRAKOW TECH UNIV,INST CHEM ENGN & PHYS CHEM,PL-31155 KRAKOW,POLAND
关键词
D O I
10.1016/S0277-5387(00)81750-7
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Reduction of [Mo(NO)L*Cl2] [L* = HB(3,5-Me2C3HN2)3] with n-butyl lithium in the presence of SnBun3Cl afforded the paramagnetic (17-electron) [Mo(NO)L*Cl(3,5-Me2C3HN2H)] (1). Related compounds, [Mo(NO)L*XQ] (Q = pyrazole, 3,5-dimethylpyrazole, 4-bromopyrazole and 4-bromo-3,5-dimethylpyrazole; X = Cl or I), were prepared by the reduction of [Mo(NO)L*X2] by Q (X = I) or by n-butyl lithium in the presence of Q (X = Cl). IR and EPR spectroscopic characterization of these species is reported and the X-ray structure of [Mo(NO)L*Cl(3,5-Me2C3HN2H)] . 1/2CH2Cl2, in which the molybdenum atom has octahedral coordination with disordered Cl and NO ligands, is described.
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页码:715 / 719
页数:5
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