The novel complex{[Co(bipy)(azpy)_(2)(NCS)_(2)]·H_(2)O}n(where bipy=4,4′bipyridine,azpy=4,4′azobisp yridine)has been synthesized and characterized by elemental analyses,IR,UV,thermal analyses,and variable tempe...The novel complex{[Co(bipy)(azpy)_(2)(NCS)_(2)]·H_(2)O}n(where bipy=4,4′bipyridine,azpy=4,4′azobisp yridine)has been synthesized and characterized by elemental analyses,IR,UV,thermal analyses,and variable temperature magnetic susceptibility.The crystal(C_(32)H_(26)CoN_(12)OS_(2),Mr=717.70)belongs to the orthorhombic,space group Pnna,a=2.21312(16)nm,b=1.40403(10)nm,c=1.14237(8)nm,V=3.5497(4)nm^(3),Z=4,Dc=1.343g·cm^(-3),μ=0.645mm^(-1),F(000)=1476,and final R_(1)=0.0691,wR_(2)=0.1129 for 231 parameters and 1674 observed reflections[I>2.00σ(I)].The Co(Ⅱ)atom is,in a distorted octahedral geometry,coordinated by six nitrogen atoms from two bridging bipy,two monodentate azpy,and two thiocyanate groups.The bridging ligand bipy links Co(Ⅱ)atoms to form the infinite“rod"with terminal coordination azpy ligand acting as sidearms.Unprecedented three parallel interpenetrating two dimensional(4,4)networks and novel infinite triple helices are formed via hydrogen bonding interactions.CCDC:155588.展开更多
The bis(tributyltin) ester of succinic acid was synthesized by the reaction of disodium salt of succinic acid with tributyltin chloride in a molar ratio of 1:2. The crystal structure was determined by X-ray single-cry...The bis(tributyltin) ester of succinic acid was synthesized by the reaction of disodium salt of succinic acid with tributyltin chloride in a molar ratio of 1:2. The crystal structure was determined by X-ray single-crystal diffraction. It belongs to orthorhombic with space group Pccn, a = 20.949(3), b = 17.470(3), c = 20.345(3) Angstrom, V = 7446(2) Angstrom(3), Z = 8, D-c = 1.242 g/cm(3), mu = 1.365 mm(-1), F(000) = 2864, R = 0.0544 and wR = 0.1417. The tin atom is of five-coordination in a trigonal bipyramidal structure by bridging two carboxylate groups in different directions and the resulting structure which contains straight twist large ring channels along the axes of a, b and c is a three-dimensional framework polymer containing two different tin atoms.展开更多
文摘The novel complex{[Co(bipy)(azpy)_(2)(NCS)_(2)]·H_(2)O}n(where bipy=4,4′bipyridine,azpy=4,4′azobisp yridine)has been synthesized and characterized by elemental analyses,IR,UV,thermal analyses,and variable temperature magnetic susceptibility.The crystal(C_(32)H_(26)CoN_(12)OS_(2),Mr=717.70)belongs to the orthorhombic,space group Pnna,a=2.21312(16)nm,b=1.40403(10)nm,c=1.14237(8)nm,V=3.5497(4)nm^(3),Z=4,Dc=1.343g·cm^(-3),μ=0.645mm^(-1),F(000)=1476,and final R_(1)=0.0691,wR_(2)=0.1129 for 231 parameters and 1674 observed reflections[I>2.00σ(I)].The Co(Ⅱ)atom is,in a distorted octahedral geometry,coordinated by six nitrogen atoms from two bridging bipy,two monodentate azpy,and two thiocyanate groups.The bridging ligand bipy links Co(Ⅱ)atoms to form the infinite“rod"with terminal coordination azpy ligand acting as sidearms.Unprecedented three parallel interpenetrating two dimensional(4,4)networks and novel infinite triple helices are formed via hydrogen bonding interactions.CCDC:155588.
基金the National Natural Science Foundation of China (No. 20271025)the Natural Science Foundation of Shandong province (No. Z2001B02)the State Key Laboratory of Crystal Materials,Shandong University
文摘The bis(tributyltin) ester of succinic acid was synthesized by the reaction of disodium salt of succinic acid with tributyltin chloride in a molar ratio of 1:2. The crystal structure was determined by X-ray single-crystal diffraction. It belongs to orthorhombic with space group Pccn, a = 20.949(3), b = 17.470(3), c = 20.345(3) Angstrom, V = 7446(2) Angstrom(3), Z = 8, D-c = 1.242 g/cm(3), mu = 1.365 mm(-1), F(000) = 2864, R = 0.0544 and wR = 0.1417. The tin atom is of five-coordination in a trigonal bipyramidal structure by bridging two carboxylate groups in different directions and the resulting structure which contains straight twist large ring channels along the axes of a, b and c is a three-dimensional framework polymer containing two different tin atoms.
