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The First Heterobimetallic Metallasilsesquioxane Derivatives of Manganese
Author(s) -
Lorenz Volker,
Blaurock Steffen,
Edelmann Frank T.
Publication year - 2008
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200800292
Subject(s) - manganese , yield (engineering) , chemistry , silsesquioxane , crystal structure , crystallography , medicinal chemistry , materials science , organic chemistry , metallurgy , polymer
The reaction of ( c ‐C 6 H 11 ) 7 Si 7 O 9 (ONa) 3 , prepared in situ from ( c ‐C 6 H 11 ) 7 Si 7 O 9 (OH) 3 ( 1 ), and MnCl 2 (THF) 2 in THF solution resulted in formation of the novel heterobimetallic Mn/Na metallasilsesquioxane complex [( c ‐C 6 H 11 ) 7 Si 7 O 9 (O 3 Mn)Na(Et 2 O)] 2 ·Et 2 O ( 2 ) which was isolated in the form of colorless crystals in 64 % yield. Similar treatment of MnCl 2 (THF) 2 with in situ prepared ( c ‐C 6 H 11 ) 7 Si 7 O 9 (OLi) 3 afforded the unusual tetramanganese silsesquioxane complex [( c ‐C 6 H 11 ) 7 Si 7 O 9 (O 3 Mn 2 Br)LiBr(THF)(Et 2 O)] 2 ( 3 ) in high yield (81 %). Both 2 and 3 were structurally characterized by single‐crystal X‐ray diffraction.