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
A novel coordination polymer of [Co( p-CPOA)(2,2′-bipy)(H2O)]n ( p-CPOA2-=4-carboxylphenoxyacetate dianion, 2,2′-bipy=2,2′-bipyridine) was synthesized and characterized by elemental analysis, IR and X-ray single cr...A novel coordination polymer of [Co( p-CPOA)(2,2′-bipy)(H2O)]n ( p-CPOA2-=4-carboxylphenoxyacetate dianion, 2,2′-bipy=2,2′-bipyridine) was synthesized and characterized by elemental analysis, IR and X-ray single crystal diffraction. The title complex crystallizes in monoclinic space group C2/c, with a=1.424 4(3) nm, b=1.316 6(3) nm, c=1.947 7(4) nm, β=104.56(3)°. V=3.535 3(14) nm3, Z=8, R=0.028 5, wR=0.089 1. The cobalt(Ⅱ) ion displays a distorted octahedral coordination geometry, defined by three carboxyl oxygen atoms from different p-CPOA2- groups, two nitrogen atoms from 2,2′-bipyridine ligand and one water molecule. The cobalt atoms are bridged by p-CPOA2- groups, forming a one-dimensional chain structure along a axis. The adjacent Co...Co atoms distance is 0.996 8 nm. A layer supramolecular network is contrsucted by the hydrogen bonds and π-π stacking interactions. CCDC: 220039.展开更多
Oxidation process of Co(C 6 H 11 O) 2 PS 2 2 and substitute-reduction reaction of Co C 6 H 11 O) 2 PS 2 3 with pyridine have been studied by spectrophotome tric methods,respectively.The equ ilibrium constant was found...Oxidation process of Co(C 6 H 11 O) 2 PS 2 2 and substitute-reduction reaction of Co C 6 H 11 O) 2 PS 2 3 with pyridine have been studied by spectrophotome tric methods,respectively.The equ ilibrium constant was found to be K=0.63±0.02(mol·dm -3 ) -3 .The crystal structure of Co 6 H 11 O) 2 PS 2 2·2Py has been determined by X-ray diff-raction method.The crystal belongs to triclinic system,space groupP1,with cell parameters:a=6.944(2)?,b=9.277(3)?,c=15.981(6)?,α=91.79(3)°,β=99.55(3)°,γ=94.44(3)°,V=1011.2(6)? 3 ,Z =2,M r =803.94,D c =1.320Mg ·m -3 ,F(000)=425,μ=0.747mm -1 ,final R=0.0700and w R=0.1988for 3626re-flections with I≥2σ(I).The cobalt atom in the title complex has a octahedral geometry with four Co-S bonds and two Co-N bonds.The central atom P is t etrahedrally surrounded by two sulp hur atoms and two oxygen atoms in the dicyclohexyldithiophosphate liga nd.The six carbon atoms of cyclohexyl take the chair conformation.展开更多
In this paper,the synthesis and measurement of X-ray crystal structures ofCd￡¨C ￡μH￡μ N￡(c) ￡2￡¨S￡2CO￡-n￡-C￡′H￡1￡(c)￡2andCd￡¨S￡2CO￡-n￡-C￡′H￡1￡(c)2n were reported￡(r)The reaction...In this paper,the synthesis and measurement of X-ray crystal structures ofCd￡¨C ￡μH￡μ N￡(c) ￡2￡¨S￡2CO￡-n￡-C￡′H￡1￡(c)￡2andCd￡¨S￡2CO￡-n￡-C￡′H￡1￡(c)2n were reported￡(r)The reaction ofCd￡¨S ￡2 CO￡-n￡-C ￡′ H ￡1 ￡(c) 2 n with pyridine destroyed the original polymeric structure to and yielded t he bis￡-￡¨lewis bases￡(c)adduct￡(r)The crystals belong to monoclinic system,space group P￡2￡¨￡±￡(c)￡ˉc￡(r)The cell dimensions ofCd￡¨C ￡μ H￡μN￡(c)2(S2CO-n-C4H￡1￡(c)￡2re a￡1/2￡±￡(r)￡±￡°￡1￡′￡¨￡±￡2￡(c)￡?b￡1/2￡°￡(r)￡?￡±￡μ￡2￡¨￡?￡(c)￡?c￡1/2￡±￡(r)7985(1￡1￡(c)nm￡?|?￡1/2￡1￡?￡(r)￡±￡′￡?￡¨￡2￡(c)??￡?V￡1/2￡±￡(r)￡2￡2￡°￡′￡¨￡2￡(c)nm￡3 ￡(r)The structure was refined to R￡± ￡1/2￡°￡(r)￡°￡2￡′￡?and w R ￡2 ￡1/20?r)￡°￡?￡′￡μ￡(r)The complex has a centro-sym metric molecule structure￡(r)The cell dimensions of Cd￡¨S￡2CO￡-n￡-C ￡′ H ￡1 ￡(c) 2 n are a￡1/2￡2￡(r)￡μ￡?￡′￡1￡¨￡′￡(c)￡?b￡1/2￡°￡(r)￡μ￡?￡±￡°￡¨￡*￡(c)￡?c￡1/2￡±￡(r)￡±￡3￡′￡?￡¨￡′￡±￡(c)nm￡?|?￡1/2￡±￡°￡±￡(r)￡*￡°￡±￡¨￡2￡(c)??￡?V￡1/2￡±￡(r)6566(3￡(c)nm￡3 ￡(r)The structure was refined to R￡± ￡1/2￡°￡(r)0711and w R￡2￡1/2￡°￡(r)￡±￡*￡μ￡μ￡(r)展开更多
The complexCo 2 Cl 2 (EGTB)·(ClO 4 ) 2 ·5H 2 O was synthesized in methanol-aqueous solution and its crystal structure was determined by X-ray di ffraction method.The crystal belon gs to monoclinic with space...The complexCo 2 Cl 2 (EGTB)·(ClO 4 ) 2 ·5H 2 O was synthesized in methanol-aqueous solution and its crystal structure was determined by X-ray di ffraction method.The crystal belon gs to monoclinic with space group of P2 1 /c.The cell parameters are a=1.42231(2)nm,b=2.53181(3)nm,c=1.43392(2)nm,β=102.0518(5)°,Z =4,F(000)=2360,D c =1.508g·cm -3 ,The final R=0.0788,w R 2 =0.232,The catalytic rate constant of the dismutation of superoxide radic als has been obtained by means of photo reduction of nitroblue tetrazoliu m(NBT),and it is 1.875×10 6 mol -1 ·L·s -1 .展开更多
A new cobalt Ⅲ complex, [CoL2(NCS)2]·2CH2Cl2, [L=4-(p-methylphenyl)-3,5-bis(pyridin-2-yl)-1,2,4-triazole], was synthesized and its crystal structure was determined by X-ray analysis. The complex crystallizes in ...A new cobalt Ⅲ complex, [CoL2(NCS)2]·2CH2Cl2, [L=4-(p-methylphenyl)-3,5-bis(pyridin-2-yl)-1,2,4-triazole], was synthesized and its crystal structure was determined by X-ray analysis. The complex crystallizes in monoclinic system with space group P21/ c, a=0.867 40(17), b=1.453 9(3), c=1.781 9(4) nm, 18(3)The cobalt atom is in a distorted octahedral environment with two bidentate chelating L ligands in the equatorial plane and t wo NCS-ions in the axial positions. CCDC: 251658.展开更多
Department of Chemistry&Biology,Hechi Teacher’s College,Yizhou546300)abstract:The new complex formulated[Co（DPC）abstract: 2 ]-Co（H 2 O）abstract: 5 ]·2H 2 O（HDPC - is pyridine-2,6-dicarboxylate）abstract...Department of Chemistry&Biology,Hechi Teacher’s College,Yizhou546300)abstract:The new complex formulated[Co（DPC）abstract: 2 ]-Co（H 2 O）abstract: 5 ]·2H 2 O（HDPC - is pyridine-2,6-dicarboxylate）abstract:has been synthesized and the crystal structu re was determined by X-ray diffraction.The crystal structure of the complex bel ongs to monoclinic system with space group P2 1 /c,a=0.83850（10）abstract:nm,b=2.7386（4）abstract:nm,c=0.9610（2）abstract:nm,β =98.280（10）abstract:°,V=2.1838（6）abstract:nm 3 ,Z=4,D c =1.746g·cm -3 ,μ =1.597mm -1 .In the crystal the two Co 2+ are in distort-ed octahedrons.The part of·2H 2 O（HDPC - is pyridine-2,6-dicarboxylate）abstract:has been synthesized and the crystal structu re was determined by X-ray diffraction.The crystal structure of the complex bel ongs to monoclinic system with space group P2 1 /c,a=0.83850（10）abstract:nm,b=2.7386（4）abstract:nm,c=0.9610（2）abstract:nm,β =98.280（10）abstract:°,V=2.1838（6）abstract:nm 3 ,Z=4,D c =1.746g·cm -3 ,μ =1.597mm -1 .In the crystal the two Co 2+ are in distort-ed octahedrons.The part of[Co（DPC）abstract: 2 ]possess an approximate D 2d symmetry,while the part of[OCo （2）OH 2 5 ]has an approximate C2symmetry.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.
文摘A novel coordination polymer of [Co( p-CPOA)(2,2′-bipy)(H2O)]n ( p-CPOA2-=4-carboxylphenoxyacetate dianion, 2,2′-bipy=2,2′-bipyridine) was synthesized and characterized by elemental analysis, IR and X-ray single crystal diffraction. The title complex crystallizes in monoclinic space group C2/c, with a=1.424 4(3) nm, b=1.316 6(3) nm, c=1.947 7(4) nm, β=104.56(3)°. V=3.535 3(14) nm3, Z=8, R=0.028 5, wR=0.089 1. The cobalt(Ⅱ) ion displays a distorted octahedral coordination geometry, defined by three carboxyl oxygen atoms from different p-CPOA2- groups, two nitrogen atoms from 2,2′-bipyridine ligand and one water molecule. The cobalt atoms are bridged by p-CPOA2- groups, forming a one-dimensional chain structure along a axis. The adjacent Co...Co atoms distance is 0.996 8 nm. A layer supramolecular network is contrsucted by the hydrogen bonds and π-π stacking interactions. CCDC: 220039.
文摘Oxidation process of Co(C 6 H 11 O) 2 PS 2 2 and substitute-reduction reaction of Co C 6 H 11 O) 2 PS 2 3 with pyridine have been studied by spectrophotome tric methods,respectively.The equ ilibrium constant was found to be K=0.63±0.02(mol·dm -3 ) -3 .The crystal structure of Co 6 H 11 O) 2 PS 2 2·2Py has been determined by X-ray diff-raction method.The crystal belongs to triclinic system,space groupP1,with cell parameters:a=6.944(2)?,b=9.277(3)?,c=15.981(6)?,α=91.79(3)°,β=99.55(3)°,γ=94.44(3)°,V=1011.2(6)? 3 ,Z =2,M r =803.94,D c =1.320Mg ·m -3 ,F(000)=425,μ=0.747mm -1 ,final R=0.0700and w R=0.1988for 3626re-flections with I≥2σ(I).The cobalt atom in the title complex has a octahedral geometry with four Co-S bonds and two Co-N bonds.The central atom P is t etrahedrally surrounded by two sulp hur atoms and two oxygen atoms in the dicyclohexyldithiophosphate liga nd.The six carbon atoms of cyclohexyl take the chair conformation.
文摘In this paper,the synthesis and measurement of X-ray crystal structures ofCd￡¨C ￡μH￡μ N￡(c) ￡2￡¨S￡2CO￡-n￡-C￡′H￡1￡(c)￡2andCd￡¨S￡2CO￡-n￡-C￡′H￡1￡(c)2n were reported￡(r)The reaction ofCd￡¨S ￡2 CO￡-n￡-C ￡′ H ￡1 ￡(c) 2 n with pyridine destroyed the original polymeric structure to and yielded t he bis￡-￡¨lewis bases￡(c)adduct￡(r)The crystals belong to monoclinic system,space group P￡2￡¨￡±￡(c)￡ˉc￡(r)The cell dimensions ofCd￡¨C ￡μ H￡μN￡(c)2(S2CO-n-C4H￡1￡(c)￡2re a￡1/2￡±￡(r)￡±￡°￡1￡′￡¨￡±￡2￡(c)￡?b￡1/2￡°￡(r)￡?￡±￡μ￡2￡¨￡?￡(c)￡?c￡1/2￡±￡(r)7985(1￡1￡(c)nm￡?|?￡1/2￡1￡?￡(r)￡±￡′￡?￡¨￡2￡(c)??￡?V￡1/2￡±￡(r)￡2￡2￡°￡′￡¨￡2￡(c)nm￡3 ￡(r)The structure was refined to R￡± ￡1/2￡°￡(r)￡°￡2￡′￡?and w R ￡2 ￡1/20?r)￡°￡?￡′￡μ￡(r)The complex has a centro-sym metric molecule structure￡(r)The cell dimensions of Cd￡¨S￡2CO￡-n￡-C ￡′ H ￡1 ￡(c) 2 n are a￡1/2￡2￡(r)￡μ￡?￡′￡1￡¨￡′￡(c)￡?b￡1/2￡°￡(r)￡μ￡?￡±￡°￡¨￡*￡(c)￡?c￡1/2￡±￡(r)￡±￡3￡′￡?￡¨￡′￡±￡(c)nm￡?|?￡1/2￡±￡°￡±￡(r)￡*￡°￡±￡¨￡2￡(c)??￡?V￡1/2￡±￡(r)6566(3￡(c)nm￡3 ￡(r)The structure was refined to R￡± ￡1/2￡°￡(r)0711and w R￡2￡1/2￡°￡(r)￡±￡*￡μ￡μ￡(r)
文摘The complexCo 2 Cl 2 (EGTB)·(ClO 4 ) 2 ·5H 2 O was synthesized in methanol-aqueous solution and its crystal structure was determined by X-ray di ffraction method.The crystal belon gs to monoclinic with space group of P2 1 /c.The cell parameters are a=1.42231(2)nm,b=2.53181(3)nm,c=1.43392(2)nm,β=102.0518(5)°,Z =4,F(000)=2360,D c =1.508g·cm -3 ,The final R=0.0788,w R 2 =0.232,The catalytic rate constant of the dismutation of superoxide radic als has been obtained by means of photo reduction of nitroblue tetrazoliu m(NBT),and it is 1.875×10 6 mol -1 ·L·s -1 .
文摘A new cobalt Ⅲ complex, [CoL2(NCS)2]·2CH2Cl2, [L=4-(p-methylphenyl)-3,5-bis(pyridin-2-yl)-1,2,4-triazole], was synthesized and its crystal structure was determined by X-ray analysis. The complex crystallizes in monoclinic system with space group P21/ c, a=0.867 40(17), b=1.453 9(3), c=1.781 9(4) nm, 18(3)The cobalt atom is in a distorted octahedral environment with two bidentate chelating L ligands in the equatorial plane and t wo NCS-ions in the axial positions. CCDC: 251658.
文摘Department of Chemistry&Biology,Hechi Teacher’s College,Yizhou546300)abstract:The new complex formulated[Co（DPC）abstract: 2 ]-Co（H 2 O）abstract: 5 ]·2H 2 O（HDPC - is pyridine-2,6-dicarboxylate）abstract:has been synthesized and the crystal structu re was determined by X-ray diffraction.The crystal structure of the complex bel ongs to monoclinic system with space group P2 1 /c,a=0.83850（10）abstract:nm,b=2.7386（4）abstract:nm,c=0.9610（2）abstract:nm,β =98.280（10）abstract:°,V=2.1838（6）abstract:nm 3 ,Z=4,D c =1.746g·cm -3 ,μ =1.597mm -1 .In the crystal the two Co 2+ are in distort-ed octahedrons.The part of·2H 2 O（HDPC - is pyridine-2,6-dicarboxylate）abstract:has been synthesized and the crystal structu re was determined by X-ray diffraction.The crystal structure of the complex bel ongs to monoclinic system with space group P2 1 /c,a=0.83850（10）abstract:nm,b=2.7386（4）abstract:nm,c=0.9610（2）abstract:nm,β =98.280（10）abstract:°,V=2.1838（6）abstract:nm 3 ,Z=4,D c =1.746g·cm -3 ,μ =1.597mm -1 .In the crystal the two Co 2+ are in distort-ed octahedrons.The part of[Co（DPC）abstract: 2 ]possess an approximate D 2d symmetry,while the part of[OCo （2）OH 2 5 ]has an approximate C2symmetry.
