A novel 1D CdII coordination polymer with 4-sulfobenzoate and 2,2′-bipyridine containing an approximate rectangular molecular box unit with blue fluorescent emission

The hydrothermal reaction of cadmium hydroxide with 4-sulfobenzoic acid and 2,2′-bipyridine yields 1D coordination polymer [Cd2(L)2(2,2′-bipy)2(H2O)2]n 1 (where L = 4-sulfobenzoic acid), with blue fluorescent emission in which each [Cd2(L)2(2,2′-bipy)2(H2O)2] unit (an approximate rectangular molecular box) is linked together by μ3 carboxylate to result in the formation of 1D chain coordination polymer. Crystal data for 1: triclinic, space group P-1(No.2), a=8.8350(16), b=9.4770(16), c=11.8019(15) Å; α=99.174(11), β=105.776(13), γ=113.718(15)°; V=829.1(2) Å3; Z=2; R1=0.0206, wR2=0.0526 for 2925 independent reflections with I>2σ(I).