Designed synthesis of copper(II) and nickel(II) complexes with a tridentate N₂O donor Schiff base: Modulation of crystalline architectures through CH?¦Ð and anion?¦Ð interactions

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• 作者：Mithun Das ; Shouvik Chattopadhyay
• 关键词：N2O donor ligand ; Copper(II) ; Nickel(II) ; Crystal structure ; Supramolecular interaction
• 刊名：Journal of Molecular Structure
• 出版年：2013
• 出版时间：5 November, 2013
• 年：2013
• 卷：1051
• 期：Complete
• 页码：250-258
• 全文大小：2609 K

文摘

Two copper(II) complexes, Cu(L¹)Cl (1), Cu(L¹)NCS (3) and two nickel(II) complexes Ni(L¹)Cl (2), Ni(L¹)NCS (4), where HL¹ = 1-[(2-diethylamino-ethylimino)-methyl]-naphthalen-2-ol act as tridentate N₂O donor ligand, have been prepared and characterized by elemental analysis, IR and UV-Vis spectroscopy and single crystal X-ray diffraction studies. The geometry of the central metal ion in each of the four complexes is square planar. The existence of CH?¦Ð interactions in 2 gives rise to one dimensional chain structure. Complex 3 shows two CH?¦Ð interactions and one anion?¦Ð interactions which leads to a two dimensional layer structure. Each mononuclear unit of 4 has two CH?¦Ð interactions along b axis to form a double strand one dimensional array of the molecules in crystal packing.