无机化学学报
無機化學學報
무궤화학학보
JOURNAL OF INORGANIC CHEMISTRY
2008年
2期
285-289
,共5页
贾丽慧%刘祖黎%刘蔚%谷云飞%姚凯伦
賈麗慧%劉祖黎%劉蔚%穀雲飛%姚凱倫
가려혜%류조려%류위%곡운비%요개륜
邻苯二甲酸单乙酯%四羧酸桥联双核铜%强反铁磁交换作用%磁结构关联
鄰苯二甲痠單乙酯%四羧痠橋聯雙覈銅%彊反鐵磁交換作用%磁結構關聯
린분이갑산단을지%사최산교련쌍핵동%강반철자교환작용%자결구관련
mono-ethyl phthalate%tetra-carboxylato-bridged dinuclear copper(Ⅱ)%strong antiferromagnetic interaction%magnetostructural correlation
A hydrated tetra-carboxylato-bridged dinuclear copper(Ⅱ) complex [Cu2(mEP)2(H2O)2]2 (1) (mEp is mono -ethyl phthalate or 1,2-benzenedicarboxylate monoethyl ester) has been prepared and characterized by X-ray diffraction single crystal structure analysis and magnetic measurements. This dinuclear complex adopts dimeric paddle-wheel cage structure and the coordination model around each copper(Ⅱ) atom is square-pyramidal with four oxygen atoms of the carboxylate groups from four different mono-ethyl phthalate ligands and one oxygen atom of water as apical position. The magnetic data for 1 exhibited strong intramolecular antiferromagnetic interaction between the two paramagnetic metal ions with 2J=-315.18 cm-1. Comparing with other related complexes in structure and magnetic propertity, the main factor which determines the strong antiferromagnetic interaction in the dimeric copper(Ⅱ) carboxylates is the electronic structure of the bridging O-C-O moiety. CCDC: 624561.
