866324-72-3Relevant academic research and scientific papers
Chelating N,N′-(bis(pyridin-2-yl)alkylidene)propane-1,3-diamine pseudohalide copper(II) and cadmium(II) coordination compounds: Synthesis, structure and luminescence properties of [M(bpap)(X)]ClO4 and [M(bpap)(X)2] [M = Cu, Cd; X = N3-, NCS -]
Rahaman, Sk Hafijur,Ghosh, Rajarshi,Lu, Tian-Huey,Ghosh, Barindra K.
, p. 1525 - 1532 (2005)
Copper perchlorate hexahydrate on reaction with the chelating ligands, N,N′-(bis(pyridin-2-yl)alkylidene)propane-1,3-diamine (bpap) [(py)(R)CN-(CH2)3-NC(R)(py) where py = pyridine; R = H, (bpfp); R = Me, (bpmp); R = C6H5, (bpbp)] and NaN 3/NH4NCS in a 1:1:1 mole ratio forms the complexes [Cu(bpap)(N3/NCS)]ClO4 (1a-3b), while cadmium perchlorate hexahydrate/cadmium nitrate tetrahydrate in a 1:1:2 mole ratio produces [Cd(bpap)(N3/NCS)2] (4a-6b). Elemental, spectral, electrochemical and other physicochemical results characterize the complexes. Single crystal X-ray diffraction studies confirm the structure of two representative members, [Cu(bpbp)(N3)]ClO4 (3a) and [Cd(bpbp)(NCS)2] (6b). The complexes of 1a-3b are reduced to [Cu(bpbp)2]ClO4 by ascorbic acid. However, air oxidation of [Cu(bpbp)2]ClO4 in the presence of N3/NCS produces Cu(bpap)(N3/NCS)]ClO4. All the complexes display intraligand 1(π-π*) fluorescence and intraligand 3(π-π*) phosphorescence in glassy solutions (MeOH at 77 K).
