TY - JOUR
T1 - New derivatives of an enneanuclear Mn SMM
AU - Murugesu, M.
AU - Christou, G.
AU - Wernsdorfer, W.
AU - Brechin, E.K.
PY - 2007/6/15
Y1 - 2007/6/15
N2 - The reaction of the neutral triangular species [MnO(OCR)L] (R = Me, Ph, CMe; L = py) with the tripodal ligands Htmp (1, 1, 1-tris(hydroxymethyl)propane) and Hpeol (pentaerythritol) affords the enneanuclear complexes [MnO(OCMe)(tmp)(py)(HO)] (2); [MnO(OCMe)(Hpeol)(py)(HO)] (3); [MnO(OCCMe)(Hpeol)(py)(HO)] (4); and [MnO(OCPh)(Hpeol)(py)(HO)] (5). Complexes 2-5 are characterized by spin ground states of S = 17/2 with axial zero-field splitting parameters in the range D = -0.26-0.30 cm. Sweep-rate and temperature dependent hysteresis loops diagnostic of SMM behaviour are observed below 1.2 K featuring steps at regular intervals of field.
AB - The reaction of the neutral triangular species [MnO(OCR)L] (R = Me, Ph, CMe; L = py) with the tripodal ligands Htmp (1, 1, 1-tris(hydroxymethyl)propane) and Hpeol (pentaerythritol) affords the enneanuclear complexes [MnO(OCMe)(tmp)(py)(HO)] (2); [MnO(OCMe)(Hpeol)(py)(HO)] (3); [MnO(OCCMe)(Hpeol)(py)(HO)] (4); and [MnO(OCPh)(Hpeol)(py)(HO)] (5). Complexes 2-5 are characterized by spin ground states of S = 17/2 with axial zero-field splitting parameters in the range D = -0.26-0.30 cm. Sweep-rate and temperature dependent hysteresis loops diagnostic of SMM behaviour are observed below 1.2 K featuring steps at regular intervals of field.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-34249694753&partnerID=8YFLogxK
U2 - 10.1016/j.poly.2006.09.063
DO - 10.1016/j.poly.2006.09.063
M3 - Article
AN - SCOPUS:34249694753
SN - 0277-5387
VL - 26
SP - 1845
EP - 1848
JO - Polyhedron
JF - Polyhedron
IS - 9-11
ER -