SYNTHESIS AND STRUCTURE OF A NEW THREE-DIMENTIONAL OPEN-FRAMEWORK ZINC PHOSPHATE WITH 12-MEMBERED RING CHANNELS

摘要

A new three-dimensional zinc phosphate [Zn_6P_5O_(20)]~(3-)·[C_6N_3H_(15)]~(3+) ·H_2O (1) has been hydrothermally synthesized from a reaction system Zn(OAc)_2-1-(2-aminoethyl)piperazine-H_3PO_4-H_2O. Single crystal X-ray diffraction analysis shows that it crystallizes in the monoclinic space group C2/c (no. 15) with a=20.240(4), b=16.856(3), c=8.1541(16)A, β=l11.02(3)°, V=2596.7(9)A~3 and Z=4. Its structure consists of one dimensional 12-membered ring channels along the [001] direction.