Premium
Synthesis and Structure of a Hexameric Silver and Tetrameric Gold Aminopyridinates
Author(s) -
Glatz Germund,
Motz Günter,
Kempe Rhett
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.200800324
Subject(s) - homoleptic , tetrahydrothiophene , chemistry , transmetalation , trimethylsilyl , pyridine , crystallography , crystal structure , metathesis , salt metathesis reaction , stereochemistry , lithium (medication) , medicinal chemistry , metal , catalysis , organic chemistry , polymerization , polymer , medicine , endocrinology
4‐Methyl‐2‐((trimethylsilyl)amino)pyridine (Ap TMS H) was synthesized via a salt metathesis reaction. Lithiation of Ap TMS H with n ‐BuLi afforded the transmetallation agent [(Ap TMS ) 2 Li 2 (OEt 2 ) 2 ] ( 1 ) which was structurally characterized. Reaction of 1 with AgCl and [AuCl(tht)] (tht = tetrahydrothiophene) at low temperatures in THF yielded homoleptic aminopyridinates of the heavier group 11 metals, namely [(Ap TMS ) 6 Ag 6 ] ( 2 ) and [(Ap TMS ) 4 Au 4 ] ( 3a and b ) after work‐up in hexane. All compounds were characterized by X‐ray crystal structure analysis. The quality of the structure determination of 3a allows establishing the connectivity only. The lithium complex 1 shows the expected structure from analogous compounds. The hexameric silver compound shows a new structural motif for silver aminopyridinates. The six‐membered ring of silver atoms has a chair conformation. Compounds 3a and b are the first homoleptic gold aminopyridinates and exhibit a rhombic arrangement of the four gold atoms.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom