Synthesis and Crystal Structure of a New Heterotrinuclear Schiff-Base Zn–Gd Complex
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A heterotrinuclear Zn–Gd complex [GdZn2L2(OAc)2](CF3SO3) (1) based on the salphen Schiff-base ligand bis(3-methoxysalicylidene)-1,2-phenylenediamine (H2L) was synthesized and characterized by single crystal X-ray diffraction. The structure was solved in the triclinic space group P − 1 with a = 9.4743(19), b = 16.333(3), c = 19.291(4) Å, α = 88.89(3), β = 78.16(2), γ = 76.69(3)°, V = 2842.0(10) Å3, Z = 2, D c = 1.610 g/cm3, F (000) = 1,386, R 1 = 0.0458, and wR 2 = 0.1239. In the solid state short intermolecular O···H–C hydrogen bonding, π–π stacking, and H···π interactions between neighboring [GdZn2L2(OAc)2]+ moieties generate a porous 3D-framework architecture with extended channels running along the a-axis.
KeywordsSchiff-base Zn–Gd complex X-ray crystal structure 3D-framework architecture
We wish to acknowledge the Freshman Research Initiative, funded in part by HHMI Undergraduate Science Education Award (52005907) and the National Science Foundation (CHE-0629136). Single crystal X-ray data were collected using instrumentation purchased with funds provided by the National Science Foundation (CHE-0741973). BJH wishes to acknowledge the Welch Foundation (F-1631), the Petroleum Research Fund administered by the American Chemical Society (47022-G3), the National Science Foundation (CHE-0639239, CHE-0847763), the American Heart Association (0765078Y), and the UT-CNM and UT-Austin for financial support of this research. RAJ wishes to acknowledge the Welch Foundation (F-816), the Texas Higher Education Coordinating Board (ARP 003658-0010-2006), and the Petroleum Research Fund, administered by the American Chemical Society (47014-AC5).
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