SINGLE-CRYSTAL GROWTH OF LEAD(II) N-OCTANOATE, N-NONANOATE AND N-DECANOATE

Single crystals of lead (II) n-octa (Pb(C-8)(2)), n-nona (Pb(C-9)(2)), and n-decanoate (Pb(C-10)(2)) have been obtained by using a silica ge l technique. These crystals have been identified by polarizing light m icroscopy, X-ray diffraction, Raman spectroscopy, and scanning electro n microscopy. The crystals show polyhedral morphology bounded by flat (001) faces and non-flat striated faces. Cleavage lines can be observe d in the (001) faces. This cleavage can be related with the bilayer st ructure of these compounds. Two kinds of crystals with different inter nal cleavage angle have been found in Pb(C-9)(2) and Pb(C-10)(2). The value of this angle is 90 degrees in one of them and similar to 120 de grees in the other one. This fact can be explained by taking into acco unt the polymorphism and polytypism in the lead (II) alkanoates series .