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  • Title: Two Cu-complex directed aluminoborates: from 2D layers to 3D frameworks.
    Author: Cheng L, Zhao JW, Yang GY.
    Journal: Dalton Trans; 2014 May 21; 43(19):7324-30. PubMed ID: 24691751.
    Abstract:
    With transition metal complexes as the structure-directing agents, two novel aluminoborates with a 2D layer [Cu(enMe)2]3{Al2[B5O8(OH)2]4}·H2O (1, enMe = 1,2-diaminopropane) and a 3D open-framework [Cu(en)2][Al-B5O10] (2, en = ethylenediamine) have been solvothermally prepared and characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis, UV/Vis spectroscopy, powder and single-crystal X-ray diffraction. 1 is a 2D {Al[B5O8(OH)2]2}(3-) layer constructed by the alternate linkages of AlO4 groups and B5O8(OH)2 clusters. The 2D layer contains 16-member rings (MRs), showing a unique sql net topology. In 2, the AlO4 groups and B5O10 clusters alternately link together to form a 3D framework, in which the stacking of building layers is different. The copper centres are chelated by two amine ligands to form a square planar, which have weak axial interactions with the aluminoborate frameworks.
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