Tris-(2,2'-bipiridil)bakır(II)perklorat, {[Cu(bpy)3](ClO4)2} Sentezi ve Kristal Yapısının Yeniden Belirlenmesi

Year 2023, , 67 - 71, 01.03.2023

Ismail Yılmaz

https://doi.org/10.35414/akufemubid.1135381

Abstract

2,2'-bipiridin ligandı ve bakır(II)asetat tuzu ile elde edilen kompleks, sulu sodyum perklorat çözeltisi ile çöktürülerek, perklorat tuzu haline getirildi. İzole edilen mavi renkli {Cu(bipy)3(C104)2} kompleksi, dimetilformamit (DMF)’de yeniden kristallendirildi. Kompleksin molekül yapısı, tek kristal x-ışını kırınımı yöntemi ile yeniden belirlendi. Çarpık-oktahedral geometride olan kompleks; triklinik kristal yapıda, P-1 uzay grubunda, a = 7.920(4) Å, b = 10.970(6) Å, c = 18.374(11) Å, α=100.43(3) °, β=90.05(2) °, γ=97.84(2)° ve Z=2 birim hücre parametrelerinde kristallenmiştir. Ekvatoryel pozisyondaki Cu-N bağları hemen hemen aynı uzunlukta olup (Ort. 2,025 Å), eksenel pozisyonundaki Cu-N(2) ve Cu-N(4) bağ uzunlukları ise sırasıyla 2.224(3) ve 2.440(3) Å’ dur. Kompleksin kristal istiflenmesi; C–H⋯O ve π⋯O etkileşimleri ile kararlı bir 3D ağ oluşturmuştur.

Keywords

Bipiridin, Bakır Kompleksi, Tris ligant, Perklorat, Kristal Yapı

Supporting Institution

Karabük Üniversitesi

Project Number

KBÜBAP-18-DS-047

Synthesis of tris-(2,2'-bipyridyl)copper(II)perchlorate, {[Cu(bpy)3](ClO4)2} and Redetermination of the Crystal Structure

Abstract

The complex obtained with 2,2'-bipyridine ligand and copper(II) acetate was precipitated with aqueous sodium perchlorate solution to become the perchlorate salt. The isolated blue colored {Cu(bipy)3(C104)2} complex was recrystallized in dimethylformamide (DMF). The molecular structure of the complex was redetermined by single crystal x-ray diffraction method. Crystals in distorted-octahedral geometry are triclinic, space group P-1, with Z=2 in a unit cell of dimensions: a = 7.920(4) Å, b = 10.970(6) Å, c = 18.374(11) Å, α=100.43(3 ) °, β=90.05(2) °, γ=97.84(2)°. Cu-N bonds in the equatorial position are almost the same length (average 2.025 Å), while the Cu-N(2) and Cu-N(4) bond lengths in the axial position are 2.224(3) and 2.440(3) Å, respectively. Crystal packaging of the complex; It formed a stable 3D network with C–H⋯O and π⋯O interactions.

Keywords

Bipyridine, Copper Complex, Tris ligand, Perchlorate, Crystal Structure

Project Number

KBÜBAP-18-DS-047

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