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Titanium Alkali Metal Nitrido Complexes
Author(s) -
GarcíaCastro María,
Martín Avelino,
Mena Miguel,
PérezRedondo Adrián,
Yélamos Carlos
Publication year - 2001
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/1521-3765(20010202)7:3<647::aid-chem647>3.0.co;2-a
Subject(s) - toluene , chemistry , alkali metal , titanium , trimethylsilyl , reagent , metal , lithium (medication) , derivative (finance) , inorganic chemistry , medicinal chemistry , organic chemistry , medicine , financial economics , economics , endocrinology
Treatment of [{Ti( η 5 ‐C 5 Me 5 )( μ ‐NH)} 3 ( μ 3 ‐N)] with alkali metal bis(trimethylsilyl)amido reagents in toluene afforded the complexes [M( μ 3 ‐N)( μ 3 ‐NH) 2 {Ti 3 ( η 5 ‐C 5 Me 5 ) 3 ( μ 3 ‐N)}] 2 (M=Li ( 2 ), Na, ( 3 ), K ( 4 )). The molecular structures of 2 and 3 have been determined by X‐ray crystallographic studies and show two azaheterometallocubane cores [MTi 3 N 4 ] linked by metal–nitrogen bonds. Reaction of the lithium derivative 2 with chlorotrimethylsilane or trimethyltin chloride in toluene gave the incomplete cube nitrido complexes [Ti 3 ( η 5 ‐C 5 Me 5 ) 3 ( μ ‐NH) 2 ( μ ‐NMMe 3 )( μ 3 ‐N)] (M=Si ( 5 ), Sn ( 6 )). A similar reaction with indium( I ) or thallium( I ) chlorides yielded cube‐type derivatives [M( μ 3 ‐N)( μ 3 ‐NH) 2 {Ti( η 5 ‐C 5 Me 5 )} 3 ( μ 3 ‐N)] (M=In ( 7 ), Tl ( 8 )).