preparation and crystal structure of cacl .[oc(nh ) ]

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چکیده

calcium dichloride tetra urea was prepared by the reaction of calcium chloride with urea in aqueous solution. the crystals are monoclinic, a= 7.633, b= 12.45 1, c= 8.118 ?,? = 113.17, z = 4, space group p 2,/a. the crystal structure was determined by single crystal x-ray methods and refined to r= 0.041. the calcium atoms are coordinated to four oxygen atoms of urea and to two chloride ions. the coordination polyhedra are distorted octahedral

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PREPARATION AND CRYSTAL STRUCTURE OF CaCl .[OC(NH ) ]

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عنوان ژورنال:
journal of sciences islamic republic of iran

جلد ۳، شماره ۲، صفحات ۰-۰

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