Citation: WANG Zhi-Yong, WANG Wei-Min, LI Gang. Crystal Structure, Fluorescent and Magnetic Properties of One Dinuclear Copper(Ⅱ) Complex with 2-(4-Methylbenzoyl)benzoic Acid and 2,2’-Bipyridine as Ligands[J]. Chinese Journal of Inorganic Chemistry, ;2014, (2): 366-370. doi: 10.11862/CJIC.2014.013 shu

Crystal Structure, Fluorescent and Magnetic Properties of One Dinuclear Copper(Ⅱ) Complex with 2-(4-Methylbenzoyl)benzoic Acid and 2,2’-Bipyridine as Ligands

1.
School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, China

Corresponding author: WANG Zhi-Yong,
Received Date: 5 March 2013
Available Online: 16 September 2013
Fund Project:

Anew dinuclear copper(Ⅱ) complex [Cu₂(L)₄(2,2'-bipy)₂]·H₂O (1) has been synthesized with 2-(4-methylbenzoyl)benzoic acid (HL) and 2,2'-bipyridine (2,2'-bipy) as ligands. Its crystal belongs to a triclinic system with space group P1, a=1.01257(15) nm, b=1.3125(2) nm, c=1.3170(2) nm, α=82.985(2)°, β=76.437(2)°, γ=88.290(2)°, V=1.6887(4) nm³, D_c=1.391 g·cm^-3, Z=2, F(000)=732, GooF=1.027. Final R₁=0.0375, wR₂=0.0914. The crystal structure shows that two neighboring copper(Ⅱ) ions are linked together by two bridging₂-(4-methylbenzoyl)benzoic acid anions, and their each end position coordinates with one 2-(4-methylbenzoyl)benzoic acid anion and one 2,2'-bipyridine molecule, forming a dinuclear structure. The fluorescent and magnetic properties of the title complex were discussed. The results show that the title complex has two emission bands at 472 and 476 nm, respectively, with the best excitation wavelength at 608 nm, and it is a paramagnetism system in temperatures range of 2~100 K. CCDC: 918797.
- copper(Ⅱ) complex;2-(4-methylbenzoyl)benzoic acid;crystal structure;fluorescent and magnetic properties
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