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Synthesis, characterisation, reactivity and X-ray crystal structure of a mixed-ligand η1-salicylaldehyde complex of Mn (III)

Lookup NU author(s): Emeritus Professor Bill Clegg

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Abstract

A tridentate ligand L has been synthesised from salicylaldehyde and 1-dimethylamino-2-propylamine It undergoes partial hydrolysis to regenerate salicylaldehyde in methanolic KOH solution Reaction of manganese (II) acetate with this solutionfollowed by addition of sodium thiocyanateproduces a dark brown complex [Mn (L) (NCS){o- (CHO)C6H4O}] (1)which has been crystallographically characterised Coordination of Mn is Jahn-Teller distorted octahedral by Lsalicylaldehydeand thiocyanate The coordinated aldehyde group reacts with 2-aminoethanol and with 2-aminophenol to give mononuclear neutral Mn (III) complexes 2 and 3respectivelywith mixed Schiff-base ligands[Mn (L) (L′)] Complexes 1 and 2 are high-spinwhile 3 is low-spin © 1998 Elsevier Science Ltd All rights reserved.


Publication metadata

Author(s): Gupta T, Saha MK, Sen S, Mitra S, Edwards AJ, Clegg W

Publication type: Article

Publication status: Published

Journal: Polyhedron

Year: 1998

Volume: 18

Issue: 1-2

Pages: 197-201

Print publication date: 04/12/1998

ISSN (print): 0277-5387

ISSN (electronic): 1873-3719

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/S0277-5387(98)00285-X

DOI: 10.1016/S0277-5387(98)00285-X


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