Effect of solvent on the crystal structures of copper(II) complexes based on 4′-(4-methoxyphenyl)-2,2′:6′,2″-terpyridine and 4′-(3-chlorophenyl)-2,2′:6′,2″-terpyridine


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Abstract

Four homoleptic copper(II) complexes, [Cu(Meophtpy)2](ClO4)2 (Meophtpy = 4′-(4-methoxylphenyl)- 2,2′:6′,2″-terpyridine) (I), [Cu(Meophtpy)2](ClO4)2 · 2H2O (II), [Cu2(m-Clphtpy)4](ClO4)4 (m-ClPhtpy = 4′-(3-chlorophenyl)-2,2′:6′,2″-terpyridine) (III), and [Cu2(m-ClPhtpy)4](ClO4)4 (IV) have been synthesized by hydrothermal methods and characterized by IR, elemental analysis and single crystal X-ray diffraction (CIF files CCDC nos. 963375 (I), 885457 (II), 963377 (III), and 963376 (IV)). Complex II is a polymorph of I and complex IV is a polymorph of III. All these complexes are obtained with 95% ethanol solution or 50% ethanol solution and the solvent control on the crystallization are obviously found. In all complexes, the face-to-face interactions between pyridyl rings or phenyl rings facilitate the construction of 3D network in the crystal in addition to hydrogen bonds. The fluorescence properties of these complexes have been investigated.

About the authors

W. W. Fu

Key Laboratory of Functional Organometallic Materials of Hunan Province College, Department of Chemistry and Materials Science

Author for correspondence.
Email: w.w.fu@hotmail.com
China, Hengyang, 421008

Q. W. Cheng

Key Laboratory of Functional Organometallic Materials of Hunan Province College, Department of Chemistry and Materials Science

Email: w.w.fu@hotmail.com
China, Hengyang, 421008

H. Y. Wang

Key Laboratory of Functional Organometallic Materials of Hunan Province College, Department of Chemistry and Materials Science

Email: w.w.fu@hotmail.com
China, Hengyang, 421008

F. Z. R. He

Key Laboratory of Functional Organometallic Materials of Hunan Province College, Department of Chemistry and Materials Science

Email: w.w.fu@hotmail.com
China, Hengyang, 421008

Y. Liu

Key Laboratory of Functional Organometallic Materials of Hunan Province College, Department of Chemistry and Materials Science

Email: w.w.fu@hotmail.com
China, Hengyang, 421008

F. X. Zhang

Key Laboratory of Functional Organometallic Materials of Hunan Province College, Department of Chemistry and Materials Science

Email: w.w.fu@hotmail.com
China, Hengyang, 421008

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