Synthesis and Characterization of Some Nitridc Molybdenum and Tungsten Complexes
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Date
1993-06
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Addis Ababa Universty
Abstract
The nitridomolybdenum(VI) complexes MoI'TOI (OPPh^)p
and LMoUCl^j were synthesized from lioCl^CCH^CN)^,
\ sodium azid, triphenylphosphine oxide and totrabutylaromonium
chloride respectively in acetonitrile. The reaction of
fioClr with sodium azide and triphenylphosphine oxide
also gave i'ioNCl^ (OPPh^^j which is found to be anew way
of preparing nitridomolybdenum complexes. The nitridomolybdenum
complexes obtained were analytically pure.
Attempts to synthesize nitridotungsten(VI) complexes
by reaction of wCl^ with sodium azide in acetonitrile gave
impure WNC1^(CH^ON)^ complex. Reaction of the recrystallized
and decomposition product of WNCl^(CHyOll)p with
triphenylphosphine oxide in methylenechloride gave pure
VfifCl^(0PPh^)2 in low yield. Similar reaction of ViWCl^(CH^CN)p
with tetrabutylammonium chloride an.d 2,2'-dipyridyl in
acetonitrile gave only impure products
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Keywords
Nitridc Molybdenum and Tungsten