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出 处:《泉州师范学院学报》2005年第2期42-46,共5页Journal of Quanzhou Normal University
摘 要:硝酸钴、邻菲罗啉(Phen)和己二酸在pH=7.0左右的水溶液中反应得到一种新的固体配合物[Co(NO3)(Phen)2]NO3·4H2O(1),并经元素分析、红外光谱和X-射线单晶衍射分析进行了表征.结构分析表明,晶体属三斜晶系, P1 空间群: a = 0.7977(16) nm, b = 1.0406(2)nm,c = 1.6591(3) nm,α= 106.12(3)°,β= 103.33(3)°,γ= 90.22(3)°,V= 1.2841(4)nm3,Dc= 1.592g·cm-3,Z=2,F(000) = 634,5298个独立衍射点中,4704个可观察点满足I≥2σ(I),R1= 0.0590,wR2= 0.1718.晶体结构中配阳离子[Co(NO3)(Phen)2 ]+ 通过芳环的堆积作用构成平行于ac面的2D层状超分子网络,未配位的反荷阴离子NO-3 和晶格水分子介于层间,通过氢键作用构成阴离子层状网络,阳离子层与阴离子层之间通过配位的NO-3 的O(3)与晶格水分子的H(13)之间的氢键作用进一步构成3D超分子体系.The reactions of Co(NO3)·6H2O, 1,10-phenanthroline (Phen) and adipic acids in H2O solution with pH 7.0 yields a new supramolecular compound [Co(NO3)(Phen)z]NO3· 4H2O(1). The complex has been characterized by elemental analysis, IR, and single-crys- tal X-ray diffraction analysis. It crystallized in the triclinic space group Pi with a = 0. 7977(16) nm,b=1. 0406(2) nm,c = 1. 6591(3) nm,a = 106.12(3)°,β = 103.33(3)°, γ= 90.22(3)°,V= 1.2841(4) nm^3, Z=2, Dc= 1.592 g·cm^-3, F(000) = 634. The final R1 and wR2 are 0. 0590 and 0. 1718,respectively, for 4704 observed reflections with Ⅰ〉2σ(Ⅰ) out of 5298 unique reflections. In crystal structure [Co(NO3)(Phen)2]^+ ions form 2D layers via π-π stacking interactions. Between layers the nitrate anions and the lattice HzO molecules are sandwiched. 2D structure is further attached into a three-dimensional supramolecular framework via many kind of hydrogen bond interactions.
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