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Templated Synthesis and Site‐Selective Conversion of Completely Nonsymmetrical Bis‐Metallosalphen Complexes
Author(s) -
Castilla Ana M.,
Curreli Simona,
Carretero Nina M.,
EscuderoAdán Eduardo C.,
BenetBuchholz Jordi,
Kleij Arjan W.
Publication year - 2009
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200900282
Subject(s) - chemistry , salicylaldehyde , diimine , reagent , metal , derivative (finance) , combinatorial chemistry , stereochemistry , organic chemistry , catalysis , schiff base , financial economics , economics
A metal‐templated, stepwise approach toward fully nonsymmetrical bis‐metallosalphen complexes is described. The synthesis comprises the selective monometalation of diimine precursors and subsequent introduction of the second metal ion by using various salicylaldehyde reagents. In the case of a bis‐Zn(salen) derivative, the presence of different peripheral substituents on the two metallosalen units gave rise to a large difference in kinetic stability, which was used to selectively demetalate the more labile site. This result shows promise for the preparation of heterobimetallic structures. The first X‐ray molecular structure of a completely nonsymmetrical bis‐salphen complex is also reported. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)