TY - JOUR
T1 - Concomitant polymorphism of an antiferromagnetically coupled dicopper(II,II) complex with single strand helical assembly
T2 - Synthesis, structure, DSC, magnetic and heterogeneous catalytic studies
AU - Mijanuddin, Md
AU - Jana, Atish Dipankar
AU - Drew, Michael G.B.
AU - Hong, Chang Seop
AU - Chattopadhyay, Basab
AU - Mukherjee, Monika
AU - Nandi, Mahasweta
AU - Bhaumik, Asim
AU - Helliwell, Madeline
AU - Mostafa, Golam
AU - Ali, Mahammad
N1 - Funding Information:
M.A. gratefully acknowledges the financial assistances from the DST (Ref. No. SR/S1/IC-35/2006), and CSIR (Ref. No. 01(7329)/07/EMR-II), New Delhi, India. M.A. also thanks to Dr. S. Das, School of Chemistry, University of Hyderabad, Hyderabad 500 046, India for X-ray data collection on complex I . M.N. thanks CSIR, New Delhi for a Senior Research Fellowship. A.B. wishes to thank DST, New Delhi for a Ramanna Fellowship Grant.
PY - 2009/3/12
Y1 - 2009/3/12
N2 - Two concomitant polymorphic coordination complexes (dark blue - I and black - II) with the formula (Cu2C44H60N4O4) have been synthesized and characterized crystallographically. Magnetic measurements show the presence of a strong antiferromagnetic interaction and the 2J value corresponds extremely well to the theoretically calculated one, indicating the fact that it follows nicely the magneto-structural relationship. Immobilization of the copper(II) complex 1 on a 2D-hexagonal mesoporous silica showed good catalytic efficiency in the liquid phase partial oxidation of olefins in the presence of TBHP as an oxidant.
AB - Two concomitant polymorphic coordination complexes (dark blue - I and black - II) with the formula (Cu2C44H60N4O4) have been synthesized and characterized crystallographically. Magnetic measurements show the presence of a strong antiferromagnetic interaction and the 2J value corresponds extremely well to the theoretically calculated one, indicating the fact that it follows nicely the magneto-structural relationship. Immobilization of the copper(II) complex 1 on a 2D-hexagonal mesoporous silica showed good catalytic efficiency in the liquid phase partial oxidation of olefins in the presence of TBHP as an oxidant.
KW - Antiferromagnetically coupled
KW - Concomitant polymorphism
KW - Cu-complexes
KW - Epoxidation
KW - Heterogeneous catalysis
KW - Hexagonal mesoporous silica
KW - Immobilization
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U2 - 10.1016/j.poly.2008.12.047
DO - 10.1016/j.poly.2008.12.047
M3 - Article
AN - SCOPUS:60349127695
SN - 0277-5387
VL - 28
SP - 665
EP - 672
JO - Polyhedron
JF - Polyhedron
IS - 4
ER -