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Crystal structure of a one-dimensional looped-chain silver(I) coordination polymer: catena-poly[[silver(I)-bis-{μ-4-[1-(5'-isopropyl-[1,1':3',1''-terphen-yl]-2'-yl)-1H-imidazol-2-yl]pyridine-κ(2) N:N'}] nitrate methanol monosolvate monohydrate].

ABSTRACT: In the title compound, {[Ag(C29H25N3)2]NO3·CH3OH·H2O} n , the Ag(I) cation is four-coordinated by two pyridine N atoms and two imidazole N atoms from four individual 4-(1-(5'-isopropyl-[1,1':3',1''-terphen-yl]-2'-yl)-1H-imidazol-2-yl)pyridine (i-pro-pyim) ligands. This gives rise to a highly distorted tetra-hedral geometry with bond angles falling in the range 100.33 (19)-122.76 (19)°. Two crystallographically independent i-pro-pyim ligands (A and B) adopt very similar conformations to one another, such that the dihedral angles between the pyridyl and imidazolyl rings in the two ligands are 40.7 (3) and 42.2 (3)°, respectively. Each i-pro-pyim ligand binds two symmetry-related Ag(+) cations, leading to the formation of 14-membered cyclic dimers, in which the Ag(I) atoms are separated by 6.963 (2) Å for the Ag-A 2-Ag dimer and 7.020 (2) Å for Ag-B 2-Ag. These cyclic dimers are alternately connected to each other by sharing Ag(I) atoms, resulting in the formation of a looped-chain structure extending along the [100] direction. Moreover, adjacent looped chains are connected by inter-molecular π-π inter-actions [centroid-to-centroid distance = 3.689 (4) Å], giving rise to the formation of a two-dimensional supra-molecular network propagating parallel to (110). Several inter-molecular C-H⋯O and O-H⋯O hydrogen bonds further contribute to the stabilization of the crystal structure.

SUBMITTER: Moon SH

PROVIDER: S-EPMC4992918 | biostudies-literature |

REPOSITORIES: biostudies-literature

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catena-Poly[[dichloridoiron(II)]-?-4,4''-bis-(benzimidazol-1-yl)-1,1':4',1''-terphen-yl].

Project description:In the title coordination polymer, [FeCl(2)(C(32)H(22)N(4))](n), the Fe(II) atom lies on a crystallographic twofold axis and a distorted FeCl(2)N(2) tetra-hedral coordination geometry arises. The complete ligand is generated by crystallographic twofold symmetry, resulting in an infinite one-dimensional architecture along [101].

| S-EPMC2983580 | biostudies-literature

catena-Poly[[dinitratocopper(II)]-?-4,4''-bis-(1H-benzimidazol-1-yl)-1,1':4',1''-terphen-yl].

Project description:In the title one-dimensional coordination polymer, [Cu(NO(3))(2)(C(32)H(22)N(4))](n), the Cu(2+) ion (site symmetry 2) is coordinated by two nitrate O atoms and two N atoms from two 4,4'-bis-(benzoimidazol-1-yl)terphenyl (L) ligands in a distorted cis-CuN(2)O(2) square-planar coordination geometry. An alternative description of the metal coordination geometry, if long Cu-O contacts to the bonded nitrate anions are considered, is an extremely distorted cis-CuN(2)O(4) octa-hedron. The complete L ligand is generated by crystallographic twofold symmetry and connects the metal ions into infinite chains propagating in [10[Formula: see text]]. The dihedral angle between the benzimidazole ring system and the adjacent benzene (B) ring is 51.12?(11)° and the dihedral angle between the B ring and the central ring is 19.45?(13)°.

| S-EPMC3089250 | biostudies-literature

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Project description:The title compound, {(C(13)H(22)N(4))[Ag(2)I(4)]}(n), was prepared by reaction of 1,3-bis-(N-ethyl-imidazolium-1-yl)propane iodide with silver (I) oxide. In the 3,3'-diethyl-1,1'-(propane-1,3-di-yl)di(1H-imidazol-3-ium) cation, the dihedral angle between the imidazole rings is 49.3?(1)°. In the [Ag(2)I(4)](2-) anion, each Ag(I) atom is bonded to three iodide anions, the two Ag(I) atoms and two of the iodides forming Ag(2)I(2) square-planar (r.m.s. deviation = 0.01?Å) units·The remaining two iodides, which are placed on opposite sides of the square, together with their centrosymmetric counterparts, link the square-planar Ag(2)I(2) units into {[Ag(2)I(4)](2-)}(n) polymeric chains via Ag-I bonds.

| S-EPMC3379117 | biostudies-literature

3,3'',4,4''-Tetra-meth-oxy-1,1':4',1''-terphen-yl.

Project description:The title mol-ecule, C(22)H(22)O(4), is centrosymmetric with an inversion centre located at the centre of the benzene ring. The 3,4-dimeth-oxy-benzene fragment is essentially planar [maximum deviation = 0.400?(2)?Å] and twisted relative to the central benzene ring, forming a dihedral angle of 21.25?(7)°. In the crystal, C-H?O hydrogen bonds link the mol-ecules into a two-dimensional polymeric structure lying parallel to (100).

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3,3''-Bis(9-hy-droxy-fluoren-9-yl)-1,1':3',1''-terphen-yl.

Project description:The asymmetric unit of the title compound, C44H30O2, contains two independent mol-ecules in which the terminal rings of the terphenyl element are inclined at angles of 36.3?(1) and 22.5?(1)° with respect to the central ring and the dihedral angles between the fluorenyl units are 72.3?(1) and 62.8?(1)°. In the crystal, pairs of O-H?O hydrogen bonds link the mol-ecules into inversion dimers. The hy-droxy H atoms not involved in these hydrogen bonds form O-H?? inter-actions in which the central terphenyl rings act as acceptors. Weak C-H?O contacts and ?-? [centroid-centroid distance = 4.088?(2)?Å] stacking inter-actions also occur. Taking into account directed non-covalent bonding between the molecules, the crystal is constructed of supramolecular strands extending along the a-axis direction.

| S-EPMC3790384 | biostudies-literature

catena-Poly[[silver(I)-?-bis-{2-[(E)-phenyl-diazen-yl]-1H-imidazol-1-yl}methane] trifluoro-methane-sulfonate].

Project description:The title compound, {[Ag(C(19)H(16)N(8))](CF(3)SO(3))}(n), is a coordin-ation polymer with cationic chain motif. The Ag(+) cation is coordinated by two unsubstituted imidazolyl N atoms of two independent 2-paBIM ligands [2-paBIM is bis-{2-[(E)-phenyl-diazen-yl]-1H-imidazol-1-yl}methane]. The shortest Ag?Ag separation in a cationic chain is 8.841?(2)?Å and the dihedral angle between two 2-phenyl-diazenyl-imidazole planes in the same ligand is 74.7?(3)°. Weak C-H?O interactions are seen in the crystal.

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Crystal structure of bis-[1,3-bis-(2,6-diiso-propyl-phen-yl)imidazol-2-yl-idene]silver(I) chloride tetrahydro-furan monosolvate.

Project description:In the title salt, [Ag(C27H36N2)2]Cl·C4H8O, the Ag(I) atom is coordinated by two 1,3-bis-(2,6-di-methyl-phen-yl)imidazol-2-yl-idene ligands. The imidazole rings are inclined to one another by 46.69?(13)° and the benzene rings in each ligand are almost normal to the imdazole ring to which they are attached, with dihedral angles varying from 82.39?(13) to 88.27?(12)°. There are C-H?? inter-actions present in the cation, involving the two ligands, and the solvent mol-ecule is linked to the cation via a C-H?O hydrogen bond. In the crystal, mol-ecules are linked by trifurcated C-H?(Cl,Cl,Cl) hydrogen bonds, forming slabs parallel to (101). One isopropyl group is disordered over two sets of sites with an occupancy ratio of 0.447?(17):0.553?(17) and the THF mol-ecule is disordered over two positions with an occupancy ratio of 0.589?(6):0.411?(6).

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4'-Acetyl-3''-carbamoyl-[1,1':3',1''-terphen-yl]-2-carb-oxy-lic acid.

Project description:In the title m-terphenyl derivative, C22H17NO4, the dihedral angles between the aromatic rings of the benzoic acid-acetophenone, acetophenone-benzamide and benzoic acid-benzamide units are 45.39?(8), 48.02?(8) and 42.93?(8)°, respectively. The carbamoyl and carboxyl groups are disordered with a refined occupancy ratio of 0.558?(15):0.442?(15). In the crystal, mol-ecules are linked through O-H?O and N-H?O hydrogen bonds between terminal carboxyl and carbamoyl groups in a bidentate manner, and anti-parallel helices are formed which extend along the b-axis direction.

| S-EPMC3790450 | biostudies-literature

Bis(3,5-dimethyl-1H-pyrazole-?N(2))bis-(3,3'',5,5''-tetra-methyl-[1,1':3',1''-terphen-yl]-2'-carboxyl-ato-?O)iron(II) dichloro-methane monosolvate.

Project description:In the title compound, [Fe(C(23)H(21)O(2))(2)(C(5)H(8)N(2))(2)]·CH(2)Cl(2), the Fe(2+) cation is coordinated by the N atoms of two 3,5-dimethyl-pyrazole ligands and the carboxyl-ate O atoms from two tetra-methyl-terphenyl-carboxyl-ate ligands, forming an FeN(2)O(2) polyhedron with a slightly distorted tetra-hedral coordination geometry. Intra-molecular N-H?O and C-H?O hydrogen-bonding inter-actions stabilize the mol-ecular conformation. The dihedral angles formed by the central benzene ring with the outer benzene rings of the terphenyl groups are 47.92?(8), 59.38?(8), 48.24?(8) and 52.37?(8)°. The dichloro-methane solvent mol-ecule inter-acts with the complex mol-ecule via a C-H?O hydrogen bond. In the crystal, centrosymmetrically related complex mol-ecules are linked into dimers through pairs of C-H?O hydrogen bonds.

| S-EPMC3344361 | biostudies-literature

Poly[[[silver(I)-?-1,4-bis-[(imidazol-1-yl)meth-yl]benzene-?N:N-silver(I)-?-1,4-bis-[(imidazol-1-yl)meth-yl]benzene-?N:N] 4,4'-diazenediyldibenzoate] dihydrate].

Project description:In the title compound, [Ag(2)(C(14)H(14)N(4))(2)](C(14)H(8)N(2)O(4))·2H(2)O, each of the two unique Ag(+) ions is two-coordinated by two N atoms from two different 1,4-bis-[(imidazol-1-yl)meth-yl]benzene ligands in an almost linear fashion [N-Ag-N = 170.34?(10) and 160.25?(10)°]. The 4,4'-diazenediyldibenzoate anions do not coordinate to Ag. O-H?O hydrogen bonds stabilize the crystal structure.

| S-EPMC3100071 | biostudies-literature

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