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The 2:2 complexes between lighter rare earth nitrates and N,N,N’,N’-tetraphenyl-3,6-dioxaoctanedioicdiamide(TDD),[RE(TDD)_2(H_2O)_2][RE(NO_3)_6]1—4(1,2,3,4 for RE=La,Ce,Pr,Nd,respectively)and[Ce(TDD)_2(H_2O)_2][Ce(NO_3)_6]·CH_3OH·2H_2O_5,have been synthesized andcharacterized.The crystal structure of 5 reveals that TDD acts as a tetradentate forming a half-ring coordi-nation structure.There is a little difference in the conformations of the two TDDs.The Ce ions are 10-and12-coordinated for the complex cation and anion,respectively,and the coordination polyhedrons are a bi-capped distorted square antiprism and a distorted icosahedron,respectively.
The 2: 2 complexes between lighter rare earth nitrates and N, N, N ’, N’-tetraphenyl-3,6-dioxaoctanedioicdiamide (TDD), [RE (TDD) 2 (H 2 O) 2] [RE (NO 3) 1-4 (1,2,3,4 for RE = La, Ce, Pr, Nd, respectively) and [Ce (TDD) _2 (H_2O) _2] [Ce (NO_3) _6] · CH_3OH · 2H_2O_5 synthesized and characterized. The crystal structure of 5 reveals that TDD acts as a tetradentate forming a half-ring coordi- nation structure. There is a little difference in the conformations of the two TDD. The Ce ions are 10-and 12-coordinated for the complex cation and anion, respectively, and the coordination polyhedrons are a bi-capped distorted square antiprism and a distorted icosahedron, respectively.