Examples of Heterometallic 3d–3d Azido Complexes by One‐Pot Synthesis. Issue 13 (11th March 2013)

• Record Type: Journal Article
• Authors: Zhao, Jiong‐Peng; Zhao, Ran; Hu, Bo‐Wen; Yang, Qian; Zhang, Xiao‐Feng; Liu, Fu‐Chen
• Is Part Of: European journal of inorganic chemistry. Issue 13(2013)
• Page Start: 2389
• Page End: 2394
• Publication Date: 2013-03-11
• Subjects: Synthetic methods -- Hetero­metallic complexes -- Magnetic properties -- Copper -- Nickel; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201201458
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: The assembly of Cu II, M II (Co II or Ni II ), azido, and isonicotinate acid N ‐oxide under hydrothermal conditions straightforwardly gives two isomorphic heterometallic 3d–3d azido complexes formulated [Cu2 M(N3 )4 (INO)2 (H2 O)4 ]∞ (INO = isonicotinate N ‐oxide; M = Co for1 and Ni for2 ). In the structure of the complexes, Cu II ions have a trigonal‐bipyramidal‐coordinated configuration, whereas the M II ions have octahedral geometry with two water molecules in the apical positions. The structure of the complexes is based on azido‐carboxylate mixed‐coordination Cu–M–Cu trimers, which are further linked by double end‐on (EO) azido anions through the Cu II ions to form a chain structure, and the 1D structure can be described as EO azido/ syn–syn carboxylates and double EO azido mixed‐bridge spin‐sequence chains with –1/2– J 1 –3/2– J 1 –1/2– J 2 –1/2– for1 and –1/2 –J 1 –1 –J 1 –1/2 –J 2 – 1/2– for2 . Magnetic studies indicated that1 and2 are both metamagnets for the weak antiferromagnetic interactions between the ferromagnetic chains. Abstract : The assembly strategy of heterometallic 3d–3d azido complexes under one‐pot hydrothermal conditions was extended, and two novel heterometallic 3d–3d azido complexes were obtained. Magnetic studies reveal metamagnetic character of the complexes for the weak antiferromagnetic interactions between the ferromagnetic chains.