Concomitant polymorphism of an antiferromagnetically coupled dicopper(II,II) complex with single strand helical assembly: Synthesis, structure, DSC, magnetic and heterogeneous catalytic studies

Md Mijanuddin; Atish Dipankar Jana; Michael G.B. Drew; Chang Seop Hong; Basab Chattopadhyay; Monika Mukherjee; Mahasweta Nandi; Asim Bhaumik; Madeline Helliwell; Golam Mostafa; Mahammad Ali

doi:10.1016/j.poly.2008.12.047

Concomitant polymorphism of an antiferromagnetically coupled dicopper(II,II) complex with single strand helical assembly: Synthesis, structure, DSC, magnetic and heterogeneous catalytic studies

Md Mijanuddin, Atish Dipankar Jana, Michael G.B. Drew, Chang Seop Hong, Basab Chattopadhyay, Monika Mukherjee, Mahasweta Nandi, Asim Bhaumik, Madeline Helliwell, Golam Mostafa, Mahammad Ali

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	665-672
Number of pages	8
Journal	Polyhedron
Volume	28
Issue number	4
DOIs	https://doi.org/10.1016/j.poly.2008.12.047
Publication status	Published - 2009 Mar 12

Keywords

Antiferromagnetically coupled
Concomitant polymorphism
Cu-complexes
Epoxidation
Heterogeneous catalysis
Hexagonal mesoporous silica
Immobilization

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.poly.2008.12.047

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Mijanuddin, M., Jana, A. D., Drew, M. G. B., Hong, C. S., Chattopadhyay, B., Mukherjee, M., Nandi, M., Bhaumik, A., Helliwell, M., Mostafa, G., & Ali, M. (2009). Concomitant polymorphism of an antiferromagnetically coupled dicopper(II,II) complex with single strand helical assembly: Synthesis, structure, DSC, magnetic and heterogeneous catalytic studies. Polyhedron, 28(4), 665-672. https://doi.org/10.1016/j.poly.2008.12.047

Concomitant polymorphism of an antiferromagnetically coupled dicopper(II,II) complex with single strand helical assembly: Synthesis, structure, DSC, magnetic and heterogeneous catalytic studies. / Mijanuddin, Md; Jana, Atish Dipankar; Drew, Michael G.B. et al.
In: Polyhedron, Vol. 28, No. 4, 12.03.2009, p. 665-672.

Research output: Contribution to journal › Article › peer-review

Mijanuddin, M, Jana, AD, Drew, MGB, Hong, CS, Chattopadhyay, B, Mukherjee, M, Nandi, M, Bhaumik, A, Helliwell, M, Mostafa, G & Ali, M 2009, 'Concomitant polymorphism of an antiferromagnetically coupled dicopper(II,II) complex with single strand helical assembly: Synthesis, structure, DSC, magnetic and heterogeneous catalytic studies', Polyhedron, vol. 28, no. 4, pp. 665-672. https://doi.org/10.1016/j.poly.2008.12.047

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title = "Concomitant polymorphism of an antiferromagnetically coupled dicopper(II,II) complex with single strand helical assembly: Synthesis, structure, DSC, magnetic and heterogeneous catalytic studies",

abstract = "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.",

keywords = "Antiferromagnetically coupled, Concomitant polymorphism, Cu-complexes, Epoxidation, Heterogeneous catalysis, Hexagonal mesoporous silica, Immobilization",

author = "Md Mijanuddin and Jana, {Atish Dipankar} and Drew, {Michael G.B.} and Hong, {Chang Seop} and Basab Chattopadhyay and Monika Mukherjee and Mahasweta Nandi and Asim Bhaumik and Madeline Helliwell and Golam Mostafa and Mahammad Ali",

note = "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. ",

year = "2009",

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doi = "10.1016/j.poly.2008.12.047",

language = "English",

volume = "28",

pages = "665--672",

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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

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Concomitant polymorphism of an antiferromagnetically coupled dicopper(II,II) complex with single strand helical assembly: Synthesis, structure, DSC, magnetic and heterogeneous catalytic studies

Abstract

Keywords

ASJC Scopus subject areas

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