2024-03-28T18:40:16Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/185672009-11-22T23:00:00Zcom_10261_91com_10261_8col_10261_344
DIGITAL.CSIC
author
Fernández-Piñar, Regina
author
Sánchez de Medina-Revilla, Celia
author
Domínguez-Martín, Alicia
author
Brandi-Blanco, María Pilar
author
Choquesillo-Lazarte, Duane
author
González-Pérez, J. M.
author
Niclós-Gutiérrez, Juan
2009-11-12T11:20:46Z
2009-11-12T11:20:46Z
2007-10-29
Zeitschrift für anorganische und allgemeine Chemie 633(15): 2658 - 2666 (2007)
1040-0397
http://hdl.handle.net/10261/18567
10.1002/zaac.200700364
N,N-bis(carboxymethyl)-1-adamantylamine acid (H2BCAA) or N-(1-adamantyl)-iminodiacetic acid forms zwitterions that are intra-stabilized by a bifurcated N+-H···O(carboxyl)2 interaction. In the crystal, both half-protonated carboxyl groups of H2BCAA± are involved in linear O-H···O inter-molecular bridges of 2.46Å. In the studied BCAA-CuII derivatives, the iminodiacetate-moiety of the BCAA chelating ligand exhibits a mer-NO2 conformation in [Cu(BCAA)(H2O)2] (1) and [Cu(BCAA)(Him)]2 (2), but a fac-O2+N(apical) conformation in [Cu(BCAA)(bpy)(H2O)]·3.5H2O (3) [Him = imidazole, bpy =2,2-bipyridine]. In clear contrast, dipyridylamine (dpya), as auxiliary ligand, seems to be unable to promote the fac-O2+N(apical) conformation in BCAA, as reveal the structures of two new salts with the trinuclear cation [(dpya)2Cu-2-Cu(BCAA)2-Cu(dpya)2]2+ and the anions [Cu(BCAA)2]2- (4) or NO3- (5), respectively.
eng
closedAccess
Copper
Imidazole
Bipyridine
Dipyridylamine
Adamantamine
Iminodiacetate
Crystal structures
A Structural Study of the Iminodiacetate Moiety Conformation in N-(1-adamantyl)-iminodiacetate(2-) Copper(II) Complexes
artículo
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