Crystal structure of (μ4-phthalato-O:O':O'':O''':O'''')(μ3-acetato- O:O:O')(μ-hydroxo)dicadmium(II), Cd2(C2H3O2)(C8H4O4)(OH)

Abstract

C 10 H 8 Cd 2 O 7 ,monoclinic, P2 1 /n (no. 14), a =6.886(5) Å, b =7.359(5) Å, c =22.779(5) Å, b =94.518(5)°, Source of materialAllreagentsand solventwereobtained from commercial sources and used without further purification. Amixture of phthalic acid (o-H 2 bdc, 0.017 g, 0.1m mol), Cd(Ac) 2 × 2H 2 O( 0.027 g, 0.1 mmol) and 8mLdistilled H 2 Owas sealed in a15mlTeflon-linedstainless-steel reactorand heated at 130°Cfor three days. After cooling to ambient temperature, colorless crystals of the title compound were collected in 28 %yield. Experimental detailsAll Hatoms on Catoms were generated at idealized positions and refineda sr iding with d(C-H)=0 .93-0 .96Å ,a nd U iso (H) = 1.2 U eq (C). The hydroxyl Hatom was not included in the model. DiscussionThe asymmetric unit of the crystal structure consitst of two Cd(II) ions, one o-phthalate anion (o-bdc), one acetate anion (Ac) and onehydroxylgroup. Both Cd1 and Cd2 areoctahedrallysix-coordinated. Cd1 is coordinated by six oxygen atomsfrom four individual o-bdc anions, one Ac anion and one hydroxylgroup. Cd2 is coordinated by six oxygen atomsf rom two different o-bdc anions, two distinct Ac anions and two individual hydroxyl groups. The Cd-O bond lengths vary from 2.266 (4)