An iron(III) phosphonate cluster containing a nonanuclear ring.

Authors :: Yao HC
Wang JJ
Ma YS
Waldmann O
Du WX
Song Y
Li YZ
Zheng LM
Decurtins S
Xin XQ
Source :: Chemical communications (Cambridge, England) [Chem Commun (Camb)] 2006 Apr 28 (16), pp. 1745-7. Date of Electronic Publication: 2006 Mar 13.
Publication Year :: 2006
Abstract: This communication reports the first example of cyclic ferric clusters with an odd number of iron atoms capped by phosphonate ligands, namely, [Fe9(mu-OH)(7)(mu-O)2(O3PC6H9)8(py)12]. The magnetic studies support a S = 1/2 ground state with an exchange coupling constant of about J approximately equal to -30 K.