Abstract |
질산구리와 2,2'-dipyridylbenzylamine(dpb)를 에탄올 용액에서 반응시켜 새로운 구리 착화합물, Cu(dpb)(NO₃)₂(1)를 합성하였다. 아세토니트릴 용액에서 재결정하여 단결정을 얻었으며 XRD법을 이용하여 결정 구조를 확인하였다. 결정은 orthorhombic 형태로서 P2₁/c 군에 속하고 그 밖의 자료들은 다음과 같다. a=12.501(9)Å, b=9.231(10)Å, c=17.119(6)Å, α=90°, β=107.33(4)°, γ=90°, V=1885.8(2)ų, R₁=0.0647, wR₂=0.1866, Z=4. EPR, NMR, UV/VIS, 그리고 IR 등의 분광학적인 확인법에 의하여, 합성된 화합물은 디피리딜아민 유도체를 리간드로 하는 전형적인 상자성 구리(Ⅱ) 배위 화합물임을 확인하였다. A new copper(Ⅱ) complex, Cu(dpb)(NO₃)₂(H₂O) (dpb=2,2'-dipyridylbenzylamine) (1) was synthesized from the reaction of Cu(NO₃)₂·3H₂O and dpb in ethanol solution followed by recrystallization in acetonitrile. The structure of 1 was determined by X-ray diffraction methods. The single crystal structure was characterized as follows: space group P2₁/c, Z=4, a=12.501(9)Å, b=9.231(10)Å, c=17.119(6)Å, α=90°, β=107.33(4)°, γ=90°, V=1885.8(2)ų, R₁=0.0647, wR₂=0.1866 for 3258 reflections. Compound was a typical paramagnetic copper(Ⅱ) complex coordinated by 2,2'-dipyridylamine derivative ligand, which was confirmed by EPR, NMR, UV/VIS, and IR spectroscopy. |
