A new layered cobalt phosphate complex, Co( μ3-O3P)·H2O, was prepared by the hydrothermal reaction. The crystal structure of the complex was determined by single-crystal X-ray diffraction. The results indicate t...A new layered cobalt phosphate complex, Co( μ3-O3P)·H2O, was prepared by the hydrothermal reaction. The crystal structure of the complex was determined by single-crystal X-ray diffraction. The results indicate that it contains two different infinite PO3 chains linked by CoO6 octahedra with infinite 1-D tunnels. It crystallizes in the orthorhombic space group Pbcm with a=0.790 12(16) nm, b=0.900 25(18) nm, c=1.016 1(2) nm, β=90°, V=1.245 3 nm3, Z=4. Refinement gave R1=0.068 5, wR2=0.175 1 for 2 133 unique observed reflections (I>2σ(I)). The title complex was also characterized by IR, TG-DTA and chemical analysis. CSD: 413934.展开更多
The synthesis of a novel host blocked in the cone conformation and bearing m-methoxycarbonylbenzyl groups at the lower rim is described. X-ray crystal structure analysis revealed that action of one molecule of compoun...The synthesis of a novel host blocked in the cone conformation and bearing m-methoxycarbonylbenzyl groups at the lower rim is described. X-ray crystal structure analysis revealed that action of one molecule of compound upon one molecule of CH 3CN or one molecule of CH 3NO 2, forms an intramolecular inclusion complex, respectively, by CH 3-π interactions. The complex of L with tetrabutyl ammonium bromide(TBAB), L·TBAB, was obtained. The results of DTA-TG and XRD analysis of L·TBAB can also be considered as an intramolecular inclusion complex.展开更多
Two new substituted calix[4]arene derivatives 2 and 3 were synthesized by the reaction of calix[4]arene with methyl o-bromomethyl-benzoate in the presence of potassium carbonate under nitrogen. Their compositions and ...Two new substituted calix[4]arene derivatives 2 and 3 were synthesized by the reaction of calix[4]arene with methyl o-bromomethyl-benzoate in the presence of potassium carbonate under nitrogen. Their compositions and structures were confirmed by elemental analysis, IR, 1H NMR and 13C NMR. Both the compounds are in the cone conformation. The percent extraction of the tetrasubstituted calix[4]arene derivative 2 for Li +, Na +, K + and Cs + are 6.8, 19.4, 69.8 and 7.1, respectively, indicating that derivative 2 extracts K + better than Li +, Na + and Cs +. The higher selective complexation of compound 2 with K + elucidated that the radius of potassium cation may be matched with the inclusion cavity formed by the carbonyl and phenoxy groups. There is only a little extractivity of disubstituted calix[4]arene derivative 3 for alkali metal ions.展开更多
Compound [Ni(hmt)2(SCN)2(H2O)2][Ni(SCN)2(H2O)4](H2O)2 (hmt=hexamethylenetetramine) was prepared and structurally characterized by means of X ray single crystal diffraction. The two neutral units [Ni(hmt)2(SCN)2(H2O)2]...Compound [Ni(hmt)2(SCN)2(H2O)2][Ni(SCN)2(H2O)4](H2O)2 (hmt=hexamethylenetetramine) was prepared and structurally characterized by means of X ray single crystal diffraction. The two neutral units [Ni(hmt)2(SCN)2(H2O)2] and [Ni(SCN)2(H2O)4] are joined together through hydrogen bonds N…H-O, O…H-O and S…H-O. In the solid state, the compound has three dimensional network structure. The determination of its variable temperature magnetic susceptibilities (5～300K) shows that the magnetic behavior obeys the Curie Weiss law over the whole temperature ranges.展开更多
The hydrogen-bonding copper complex [Cu（mal）（phen）（H2O）]2·3H2O（mal=malonate;phen=1,10-phenanthroline）was synthesized and characterized byelementary analysis,IR and TG-DTA.Single crystal X-ray diffraction ...The hydrogen-bonding copper complex [Cu（mal）（phen）（H2O）]2·3H2O（mal=malonate;phen=1,10-phenanthroline）was synthesized and characterized byelementary analysis,IR and TG-DTA.Single crystal X-ray diffraction analysis indicates that the compound crystallizes in a triclinic system,space group Pī,the cell parameters a=11.771（2）?,b=12.527（3）?,c=11.582（2）?;a=105.49（3）°,β=109.27（3）°,γ=92.13（3）°,V=1539（5）A3,Z=2,F（000）=794,S=1.087,R=0.0486,wR=0.1220.The copper atom is five-coordinated in a distorted square pyramidal environment to two oxygen atoms of malonate,two nitrogen atoms of 1,10-phenanthroline and a water molecule.Strong hydrogen bonds between coordinated water and oxygen atoms of malonate ligands build H-bonding tetramers.Weak hydrogen bonds link these tetramers by crystal lattice water,forming two-dimensional supramolecular network.展开更多
Cobalt(Ⅱ) can form complexes with Hdbm in different environments. Hdbm reacted with cobalt nitrate to give complex 1 [Co(dbm)2·2H2O]. When complex 1 reacted with pyridine, α stilbazole or 4,4′ bipyridine respe...Cobalt(Ⅱ) can form complexes with Hdbm in different environments. Hdbm reacted with cobalt nitrate to give complex 1 [Co(dbm)2·2H2O]. When complex 1 reacted with pyridine, α stilbazole or 4,4′ bipyridine respectively, complex 2 [Co(DBM)2Py2] (Py=pyridine), 3 [Co(DBM)2Sbz2] (Sbz=α stilbazole) or 4 [Co(DBM)2BPy]n was obtained in turn through metathetical reaction. Thecoordination modes are octahedral polyhedrons. In the crystal structures, the two dbms take the plane position and two other donor molecules take the axial position. CCDC: 196070 for complex 2; 186859 for complex 3.展开更多
文摘A new layered cobalt phosphate complex, Co( μ3-O3P)·H2O, was prepared by the hydrothermal reaction. The crystal structure of the complex was determined by single-crystal X-ray diffraction. The results indicate that it contains two different infinite PO3 chains linked by CoO6 octahedra with infinite 1-D tunnels. It crystallizes in the orthorhombic space group Pbcm with a=0.790 12(16) nm, b=0.900 25(18) nm, c=1.016 1(2) nm, β=90°, V=1.245 3 nm3, Z=4. Refinement gave R1=0.068 5, wR2=0.175 1 for 2 133 unique observed reflections (I>2σ(I)). The title complex was also characterized by IR, TG-DTA and chemical analysis. CSD: 413934.
文摘The synthesis of a novel host blocked in the cone conformation and bearing m-methoxycarbonylbenzyl groups at the lower rim is described. X-ray crystal structure analysis revealed that action of one molecule of compound upon one molecule of CH 3CN or one molecule of CH 3NO 2, forms an intramolecular inclusion complex, respectively, by CH 3-π interactions. The complex of L with tetrabutyl ammonium bromide(TBAB), L·TBAB, was obtained. The results of DTA-TG and XRD analysis of L·TBAB can also be considered as an intramolecular inclusion complex.
文摘Two new substituted calix[4]arene derivatives 2 and 3 were synthesized by the reaction of calix[4]arene with methyl o-bromomethyl-benzoate in the presence of potassium carbonate under nitrogen. Their compositions and structures were confirmed by elemental analysis, IR, 1H NMR and 13C NMR. Both the compounds are in the cone conformation. The percent extraction of the tetrasubstituted calix[4]arene derivative 2 for Li +, Na +, K + and Cs + are 6.8, 19.4, 69.8 and 7.1, respectively, indicating that derivative 2 extracts K + better than Li +, Na + and Cs +. The higher selective complexation of compound 2 with K + elucidated that the radius of potassium cation may be matched with the inclusion cavity formed by the carbonyl and phenoxy groups. There is only a little extractivity of disubstituted calix[4]arene derivative 3 for alkali metal ions.
文摘Compound [Ni(hmt)2(SCN)2(H2O)2][Ni(SCN)2(H2O)4](H2O)2 (hmt=hexamethylenetetramine) was prepared and structurally characterized by means of X ray single crystal diffraction. The two neutral units [Ni(hmt)2(SCN)2(H2O)2] and [Ni(SCN)2(H2O)4] are joined together through hydrogen bonds N…H-O, O…H-O and S…H-O. In the solid state, the compound has three dimensional network structure. The determination of its variable temperature magnetic susceptibilities (5～300K) shows that the magnetic behavior obeys the Curie Weiss law over the whole temperature ranges.
文摘The hydrogen-bonding copper complex [Cu（mal）（phen）（H2O）]2·3H2O（mal=malonate;phen=1,10-phenanthroline）was synthesized and characterized byelementary analysis,IR and TG-DTA.Single crystal X-ray diffraction analysis indicates that the compound crystallizes in a triclinic system,space group Pī,the cell parameters a=11.771（2）?,b=12.527（3）?,c=11.582（2）?;a=105.49（3）°,β=109.27（3）°,γ=92.13（3）°,V=1539（5）A3,Z=2,F（000）=794,S=1.087,R=0.0486,wR=0.1220.The copper atom is five-coordinated in a distorted square pyramidal environment to two oxygen atoms of malonate,two nitrogen atoms of 1,10-phenanthroline and a water molecule.Strong hydrogen bonds between coordinated water and oxygen atoms of malonate ligands build H-bonding tetramers.Weak hydrogen bonds link these tetramers by crystal lattice water,forming two-dimensional supramolecular network.
文摘Cobalt(Ⅱ) can form complexes with Hdbm in different environments. Hdbm reacted with cobalt nitrate to give complex 1 [Co(dbm)2·2H2O]. When complex 1 reacted with pyridine, α stilbazole or 4,4′ bipyridine respectively, complex 2 [Co(DBM)2Py2] (Py=pyridine), 3 [Co(DBM)2Sbz2] (Sbz=α stilbazole) or 4 [Co(DBM)2BPy]n was obtained in turn through metathetical reaction. Thecoordination modes are octahedral polyhedrons. In the crystal structures, the two dbms take the plane position and two other donor molecules take the axial position. CCDC: 196070 for complex 2; 186859 for complex 3.
