Venkatakrishnan, Thengarai S. ; Rajamani, Raghunathan ; Ramasesha, S. ; Sutter, Jean-Pascal (2007) Synthesis, crystal structure, and magnetic properties of hexanuclear [{MnL2}4{Nb(CN)8}2] and nonanuclear [{MnL2}6{Nb(CN)8}3] heterometallic clusters (L=bpy, phen) Inorganic Chemistry, 46 (23). pp. 9569-9574. ISSN 0020-1669
Full text not available from this repository.
Official URL: http://pubs.acs.org/doi/abs/10.1021/ic062383t
Related URL: http://dx.doi.org/10.1021/ic062383t
Abstract
A hexanuclear cyano-bridged {MnII4NbIV2} cluster (1) bearing 2,2'-bipyridine (bpy) as the blocking ligand at manganese is obtained from the reaction of cis-[MnCl2(bpy)2] and K4[Nb(CN)8]. When the blocking ligand is 1,10-phenanthroline (phen), a nonanuclear cluster {MnII6NbIV3} (2) is obtained. The structure of [{Mn(bpy)2}4{Nb(CN)8}2] has been solved by single-crystal X-ray crystallography, whereas the phen derivative has been confirmed by means of the structure analysis of the corresponding WIV analogue [{Mn(phen)2}6{W(CN)8}3(H2O)2]. Magnetic measurements revealed S=9 and 27/2 spin ground states for these aggregates as a result of antiferromagnetic Nb-Mn interaction with JNb-Mn=−18.1 cm−1 (1) and −13.6 cm−1 (2).
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 39550 |
| Deposited On: | 14 May 2011 06:07 |
| Last Modified: | 18 May 2011 05:51 |
Repository Staff Only: item control page
