RESUMO
In the thio-carbonohydrazide mol-ecule of the title compound, C(17)H(12)N(6)O(2)S·C(4)H(8)O, the terminal indolin-2-one ring systems make a dihedral angle of 20.13â (6)° with each other. Two intra-molecular N-Hâ¯O hydrogen bonds are present, each of which generates an S(6) ring. In the crystal, N-Hâ¯O hydrogen bonds lead to a mol-ecular chain running along the b axis. The tetra-hydro-furan solvent mol-ecule is disordered over two orientations in a 0.561â (11):0.439â (11) ratio.
RESUMO
The title mol-ecule, C(10)H(9)NO, is almost planar with an r.m.s. deviation for all non-H atoms of 0.0115â Å. In the crystal, mol-ecules are connected through N-Hâ¯O hydrogen bonds into chains running along [021]. The chains are further connected via C-Hâ¯π inter-actions, forming layers in the bc plane.
RESUMO
In the Schiff base mol-ecule of the title compound, C(22)H(20)N(4)O(2)·C(3)H(7)NO·2H(2)O, the cyclo-hexane ring adopts a chair conformation with the two imine groups linked at the equatorial positions. The two indolin-2-one ring systems make a dihedral angle of 65.63â (5)°. In the crystal, the Schiff base mol-ecules are connected through bifurcated N-Hâ¯(O,N) hydrogen bonds, forming inversion dimers. The water molecules link the dimers and the dimethylformamide molecules via O-Hâ¯O, O-Hâ¯N and N-Hâ¯O hydrogen bonds. Together with C-Hâ¯π and π-π [centroid-centroid distance = 3.3889â (10)â Å] inter-actions a three-dimensional supra-molecular structure is formed.
RESUMO
The Pd(II) ion in the title compound, [Pd(C(17)H(14)N(3)S(2))(2)]·2C(5)H(5)N, is located on an inversion center and is four-coordinated by two of the deprotonated N,S-bidentate Schiff base ligands in a square-planar geometry. The dihedral angle between the aromatic ring planes within the ligand is 71.12â (9)°. The indole NH groups are bonded to the pyridine solvent mol-ecules via an N-Hâ¯N inter-action. The crystal structure is consolidated by inter-molecular C-Hâ¯S inter-actions.
RESUMO
The structure of the title salt, C(13)H(20)N(3)O(+)·0.94ClO(4) (-)·0.06Cl(-), contains a zwitterionic Schiff base with a net positive charge and a perchlorate anion having substitutional disorder with Cl. In the cation, the azomethine N atom is protonated and donates hydrogen bonds to the phenolate O atom and to the tertiary N atom of the piperazine ring. In the crystal, two Schiff base mol-ecules are linked about a center of inversion by a pair of N-Hâ¯O hydrogen bonds. The resulting dimers are N-Hâ¯O and C-Hâ¯O hydrogen bonded to the perchlorate anions, forming a three-dimensional structure. The network is further consolidated by C-Hâ¯π inter-actions.
RESUMO
The asymmetric unit of the title compound, [ZnCl(2)(C(11)H(17)N(3))], contains two independent penta-coordinate Zn(II) complex mol-ecules. In each mol-ecule, the metal atom is coordinated by an N,N',N''-tridenate Schiff base and two Cl atoms in a distorted square-pyramidal geometry. The two mol-ecules differ little in their geometry, but more in their inter-molecular inter-actions. In the crystal, adjacent mol-ecules are connected via C-Hâ¯Cl inter-actions into a three-dimensional supra-molecular structure. The network is supplemented by π-π inter-actions formed between the aromatic rings of pairs of the symmetry-related mol-ecules [centroid-centroid distances = 3.6255â (10) and 3.7073â (10)â Å]. The crystal lattice contains void spaces with a size of 52â Å(3).
RESUMO
In the trinuclear title compound, [Zn(3)Cl(6)(C(13)H(20)N(4))(2)]·2H(2)O, each terminal Zn(II) atom is coordinated by an N(3) donor set from the Schiff base ligands and two Cl atoms in a distorted square-pyramidal geometry. The central Zn(II) atom is tetra-hedrally coordinated by two piperazine N atoms from two Schiff base ligands and two Cl atoms. The piperazine rings adopt chair conformations. In the crystal structure, adjacent complex mol-ecules are linked into a three-dimensional network via N-Hâ¯O, C-Hâ¯Cl and C-Hâ¯O hydrogen bonds. The structure includes two water mol-ecules, one of which is disordered over two positions with occupancies of 0.753â (15) and 0.247â (15).
RESUMO
The crystal studied of the title compound, C(7)H(9)N(2)O(4) (+)·ClO(4) (-)·C(7)H(8)N(2)O(4)·H(2)O, was found to be a racemic twin with a 0.72â (18):0.28â (18) domain ratio. The hydrazidium group is close to planar, with an r.m.s deviation of 0.105â Å; the hydrazide group deviates more from planarity, with an r.m.s deviation of 0.174â Å. In the crystal, the hydrazidium cation, hydrazide mol-ecule, perchlorate anions and water mol-ecules are linked through O-Hâ¯O, N-Hâ¯O and C-Hâ¯O hydrogen bonds into a three-dimensional supra-molecular network. In addition, the benzene rings of the hydrazidium and hydrazide units are connected via π-π inter-actions into infinite chains along the c axis; the centroid-centroid distances are 3.486â (3) and 3.559â (3)â Å.
RESUMO
In the title compound, [Zn(C(6)H(14)N(2))(2)(H(2)O)(2)]Cl(2), the Zn(II) atom resides on a special position with site symmetry 2/m and is octa-hedrally coordinated by four N atoms from two trans 1,2-diamino-cyclo-hexane ligands and two water O atoms. In the crystal, N-Hâ¯Cl and O-Hâ¯Cl hydrogen bonds link the mol-ecules into a two-dimensional network parallel to the bc plane.
RESUMO
In the title compound, [Cd(NCS)(2)(C(11)H(17)N(3))](n), the Cd(II) atom is octa-hedrally coordinated by the N,N',N''-tridentate Schiff base ligand and one terminal thio-cyanate N atom. Two trans-N:S-bridging thio-cyanates complete the N(5)S donor set around the Cd atom. In the crystal, adjacent Cd(II) ions are linked by the thio-cyanate N:S-bridges into polymeric chains along the c axis.
RESUMO
In the title compound, [ZnI(2)(C(13)H(19)N(3)O)], the Zn(II) ion is five-coordinated in a distorted square-pyramidal geometry, in which the basal plane is defined by three N atoms from the Schiff base ligand and one iodide ion. A second iodide ligand, situated in the apical position, completes the coordination geometry. In the crystal structure, C-Hâ¯O hydrogen bonds link a pair of mol-ecules around an inversion centre into a dimer.
RESUMO
In the title compound, [CdCl(2)(C(14)H(21)N(3)O(2))], the Schiff base ligand chelates the Cd(II) ion in an N,N,O-tridentate fashion. Two Cl atoms complete a distorted square-pyramidal coordination environment around the metal atom. In the crystal, adjacent mol-ecules are linked through C-Hâ¯π inter-actions into infinite chains along the a axis. The mol-ecules are further connected into a three-dimensional network via N-Hâ¯O, N-Hâ¯Cl and C-Hâ¯Cl inter-actions. The ethyl-ene group is disordered over two sets of sites in a 0.520â (10):0.480â (10) ratio.
RESUMO
In the title compound, [Mn(NCS)(2)(C(13)H(19)N(3)O)(H(2)O)], the Schiff base acts as an N,N',N"-tridentate ligand, forming two five-membered chelating rings with the Mn(II) atom. The distorted octa-hedral geometry around the metal atom is completed by two cis-positioned N-bound thio-cyanate ligands and one water mol-ecule. In the crystal, adjacent mol-ecules are linked through O-Hâ¯O, O-Hâ¯S and C-Hâ¯S hydrogen bonds into a three-dimensional supra-mol-ecular structure. An intra-molecular C-Hâ¯O hydrogen bond also occurs.
RESUMO
The asymmetric unit of the title compound, [Pd(C(12)H(12)NO)(2)], consists of three crystallographically independent half-mol-ecules. Each Pd(II) atom lies on a center of inversion and is four-coordinated by two monoanionic forms of the amino-acryl-aldehyde in a square-planar geometry. In the crystal, adjacent mol-ecules are connected through C-Hâ¯π and C-Hâ¯O inter-actions into a three-dimensional polymeric structure.
RESUMO
The asymmetric unit of the title compound, [Cu(NCS)(2)(C(11)H(17)N(3))], consists of two crystallographically independent mol-ecules. In each mol-ecule, the Cu(II) ion is five-coordinated in a distorted square-pyramidal geometry wherein the basal plane is defined by the N,N',N"-tridentate Schiff base and one N-bound thio-cyanate ligand. The second N-donor thio-cyanate group, located at the apical site, completes the coordination environment. In the crystal, inter-molecular C-Hâ¯S and C-Hâ¯N hydrogen bonds link adjacent mol-ecules into infinite layers parallel to the ac plane. Intra-molecular C-Hâ¯N inter-actions are also observed.
RESUMO
In the centrosymmetric dinuclear copper(II) title complex, [Cu(2)Br(2)(C(12)H(17)N(2)O)(2)]·H(2)O, each Cu(II) ion is five coordinated in a square-pyramidal geometry by the N,N',O-tridentate Schiff base, one Br atom and the bridging O atom of the centrosymmetrically related Schiff base. In the crystal, the water mol-ecules link the complex mol-ecules into infinite chains along the b axis via O-Hâ¯Br and C-Hâ¯O hydrogen bonds.
RESUMO
In the title compound, [CdCl(2)(C(6)H(14)N(2)O)(2)], the Cl and Cd(II) atoms are located on a twofold rotation axis and the Cd(II) atom is octa-hedrally coordinated by two N,N'-bidentate 2-(morpholin-4-yl)ethanamine ligands and two trans-located Cl atoms. In the crystal, adjacent mol-ecules are linked by N-Hâ¯Cl and C-Hâ¯O hydrogen bonds into a three-dimensional structure. An intra-molecular C-Hâ¯Cl hydrogen bond is also observed.
RESUMO
In the title compound, [CuCl(2)(C(13)H(19)N(3)O)]·H(2)O, the tridentate Schiff base ligand and the two Cl atoms complete a distorted square-pyramidal coordination geometry around the Cu(II) ion in which the three N atoms and one Cl atom are located in the basal plane and the other Cl atom is at the apical position. In the crystal, O-Hâ¯Cl hydrogen bonds link the complex mol-ecules and the uncoordinated water mol-ecules into infinite chains along the a axis. The chains are further connected into a three-dimensional network via C-Hâ¯O and C-Hâ¯Cl inter-actions.
RESUMO
The Cd(II) ion in the title compound, [CdBr(2)(C(13)H(19)N(3)O)], is five-coordinated by the N,N',N''-tridentate Schiff base ligand and two Br atoms in a distorted square-pyramidal geometry. In the crystal, inter-molecular C-Hâ¯O and C-Hâ¯Br hydrogen bonds link adjacent mol-ecules into layers parallel to the ab plane. An intra-molecular C-Hâ¯Br inter-action is also observed.
RESUMO
In the title compound, [CdCl(2)(C(11)H(17)N(3))], the Schiff base acts as an N,N',N''-tridentate ligand towards the Cd(II) ion. Two Cl atoms complete a distorted square-pyramidal geometry around the metal atom. In the crystal, a C-Hâ¯Cl inter-action connects pairs of mol-ecules into centrosymetric dimers.