TY - JOUR
T1 - Synthesis and magnetic properties comparison of M-Cu(II) and M-VO(II) Schiff base-porphyrazine complexes
T2 - What is the mechanism for spin-coupling?
AU - Zhao, Min
AU - Zhong, Chang
AU - Stern, Charlotte
AU - Barrett, Anthony G.M.
AU - Hoffman, Brian M
PY - 2005/7/13
Y1 - 2005/7/13
N2 - Dimetallic Schiff base-porphyrazine (pz) compounds, denoted 1[M 1; M2; R], have been prepared, where metal ion M 1 is incorporated into the pz core, and metal ion M2 is bound to a bis(5-tert-butylsalicylidenimine) chelate built onto two amino nitrogens attached to the pz periphery; R is a solubilizing group (either propyl (Pr) or 3,4,5-trimethoxyphenyl (TMP)) attached to the remaining carbons of the pz periphery. The synthesis of 1[Cu; Cu; R], 1[Cu; VO; R], 1[CIMn; Cu; Pr], and 1[CIMn; VO; Pr] is discussed, the crystal structures of 1[Cu; Cu; TMP] and 1[CIMn; VO; Pr] are presented, and the magnetic properties of these compounds are compared. The pattern of ligand-mediated exchange coupling in these complexes is startling: for the Cu-M2 complexes 1[Cu; VO; R] and 1[Cu; Cu; R], 2 × 102 ≤
AB - Dimetallic Schiff base-porphyrazine (pz) compounds, denoted 1[M 1; M2; R], have been prepared, where metal ion M 1 is incorporated into the pz core, and metal ion M2 is bound to a bis(5-tert-butylsalicylidenimine) chelate built onto two amino nitrogens attached to the pz periphery; R is a solubilizing group (either propyl (Pr) or 3,4,5-trimethoxyphenyl (TMP)) attached to the remaining carbons of the pz periphery. The synthesis of 1[Cu; Cu; R], 1[Cu; VO; R], 1[CIMn; Cu; Pr], and 1[CIMn; VO; Pr] is discussed, the crystal structures of 1[Cu; Cu; TMP] and 1[CIMn; VO; Pr] are presented, and the magnetic properties of these compounds are compared. The pattern of ligand-mediated exchange coupling in these complexes is startling: for the Cu-M2 complexes 1[Cu; VO; R] and 1[Cu; Cu; R], 2 × 102 ≤
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U2 - 10.1021/ja0438112
DO - 10.1021/ja0438112
M3 - Article
C2 - 15998081
AN - SCOPUS:22144435160
VL - 127
SP - 9769
EP - 9775
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 27
ER -