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Crystal structure of catena-poly[silver(I)-?-l-tyrosinato-?(2) O:N].

ABSTRACT: The title compound, [Ag(C9H10NO3)] n , is a polymeric silver(I) complex of l-tyrosine. The Ag(I) atom is connected to N and O atoms of two different l-tyrosine ligands in an almost linear arrangement, with an N(i)-Ag-O1 bond angle of 173.4?(2)° [symmetry code: (i) x + 1, y, z]. The Ag-N(i) and Ag-O bond lengths are 2.156?(5) and 2.162?(4)?Å, respectively. The polymeric chains extend along the crystallographic a axis. Strong hydrogen bonds of the N-H?O and O-H?O types and additional C-H?O inter-actions connect these chains into a double-layer polymeric network in the ab plane.

SUBMITTER: Yousaf A

PROVIDER: S-EPMC4350688 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature

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Crystal structure of catena-poly[silver(I)-μ-l-tyrosinato-κ(2) O:N].

Yousaf Aqsa A Tahir Muhammad Nawaz MN Rauf Abdul A Awan Shafique Ahmad SA Ahmad Saeed S

Acta crystallographica. Section E, Crystallographic communications 20150204 Pt 3

The title compound, [Ag(C9H10NO3)] n , is a polymeric silver(I) complex of l-tyrosine. The Ag(I) atom is connected to N and O atoms of two different l-tyrosine ligands in an almost linear arrangement, with an N(i)-Ag-O1 bond angle of 173.4 (2)° [symmetry code: (i) x + 1, y, z]. The Ag-N(i) and Ag-O bond lengths are 2.156 (5) and 2.162 (4) Å, respectively. The polymeric chains extend along the crystallographic a axis. Strong hydrogen bonds of the N-H⋯O and O-H⋯O types and additional C-H⋯O inter-a ...[more]

PMID: 25844203

Similar Datasets

Crystal structure of catena-poly[silver(I)-μ-l-valinato-κ2N:O].

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| S-EPMC4438834 | biostudies-literature

Crystal structure of catena-poly[[[trans-bis(aceto-nitrile-κN)diaquacobalt(II)]-μ-pyrazine-κ(2) N:N'] dinitrate].

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catena-Poly[silver(I)-μ-pyrazolato-κN:N'].

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Crystal structure of catena-poly[[tri-methyl-tin(IV)]-μ-2-(2-nitro-phen-yl)acetato-κ(2) O:O'].

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| S-EPMC4350728 | biostudies-literature

Crystal structure of catena-poly[[aqua(2,2':6',2''-terpyridine-κ(3) N,N',N'')cobalt(II)]-μ-cyanido-κ(2) N:C-[dicyanidoplatinum(II)]-μ-cyanido-κ(2) C:N].

Project description:The title compound, [Co(C15H11N3)(H2O){Pt(CN)4}] n , is a one-dimensional coordination polymer formed under hydro-thermal reaction conditions. The Co(II) site has sixfold coordination with a distorted octa-hedral geometry, while the Pt(II) ion is coordinated by four cyanide groups in an almost regular square-planar geometry. The compound contains twofold rotation symmetry about its Co(II) ion, the water molecule and the terpyridine ligand, and the Pt(II) atom resides on an inversion center. trans-Bridging by the tetra-cyanidoplatinate(II) anions links the Co(II) cations, forming chains parallel to [-101]. Additionally, each Co(II) atom is coordin-ated by one water mol-ecule and one tridentate 2,2':6',2''-terpyridine ligand. O-H⋯N hydrogen-bonding inter-actions are found between adjacent chains and help to consolidate the crystal packing. In addition, relatively weak π-π stacking inter-actions exist between the terpyridine ligands of adjacent chains [inter-planar distance = 3.464 (7) Å]. No Pt⋯Pt inter-actions are observed in the structure.

| S-EPMC4186089 | biostudies-literature

Crystal structure of catena-poly[[di-aqua-bis-(4-formyl-benzoato-κO (1))cobalt(II)]-μ-pyrazine-κ(2) N:N'].

Project description:In the title polymeric compound, [Co(C8H5O3)2(C4H4N2)(H2O)2] n , the Co(II) atom is located on a twofold rotation axis and has a slightly distorted octa-hedral coordination sphere. In the equatorial plane, it is coordinated by two carboxyl-ate O atoms of two symmetry-related monodentate formyl-benzoate anions and by two N atoms of two bridging pyrazine ligands. The latter are bis-ected by the twofold rotation axis. The axial positions are occupied by two O atoms of the coordinating water mol-ecules. In the formyl-benzoate anion, the carboxyl-ate group is twisted away from the attached benzene ring by 7.50 (8)°, while the benzene and pyrazine rings are oriented at a dihedral angle of 64.90 (4)°. The pyrazine ligands bridge the Co(II) cations, forming linear chains running along the b-axis direction. Strong intra-molecular O-H⋯O hydrogen bonds link the water mol-ecules to the carboxyl-ate O atoms. In the crystal, weak O-Hwater⋯Owater hydrogen bonds link adjacent chains into layers parallel to the bc plane. The layers are linked via C-Hpyrazine⋯Oform-yl hydrogen bonds, forming a three-dimensional network. There are also weak C-H⋯π inter-actions present.

| S-EPMC4438811 | biostudies-literature

Crystal structure of catena-poly[[aqua-bis-(4-formyl-benzoato)-κ(2) O (1),O (1');κO (1)-zinc]-μ-pyrazine-κ(2) N:N'].

Project description:The asymmetric unit of the title polymeric compound, [Zn(C8H5O3)2(C4H4N2)(H2O)] n , contains two mol-ecular units. Each unit comprises two 4-formyl-benzoate (FB) anions, one pyrazine mol-ecule and one coordinating water mol-ecule; the FB anions act either as bidentate or as monodentate ligands. The O atoms of the bidentately coordinating FB anions are disordered over two positions, and they were refined with fixed occupancy ratios of 0.75:0.25 and 0.70:0.30, respectively. In the ordered monodentately coordinating FB anions, the carboxyl-ate groups are twisted away from the attached benzene rings (B and E) by 12.1 (2) and 9.2 (2)°, respectively. In the disordered FB anions, the corresponding angles are 14.1 (1) and 4.0 (2)° for benzene rings A and D, respectively. Benzene rings A and B are oriented at a dihedral angle of 45.7 (1)°, D and E at 23.2 (1)°. Pyrazine ring C makes dihedral angles of 85.6 (1) and 72.7 (1)°, respectively, with benzene rings A and B, and pyrazine ring F makes dihedral angles of 87.0 (1) and 81.3 (1)° with benzene rings D and E, respectively. The pyrazine ligands bridge the Zn(II) cations, forming polymeric chains running parallel to the b-axis direction. Medium-strength intra-molecular O-H⋯O hydrogen bonds link the water mol-ecules to the carboxyl-ate O atoms. In the crystal, water-carboxyl-ate O-H⋯O hydrogen bonds link adjacent chains into layers parallel to the bc plane. The layers are linked via weak pyrazine-formyl C-H⋯O and form-yl-carboxyl-ate C-H⋯O hydrogen bonds. π-π contacts between the benzene rings, with centroid-to-centroid distances of 3.7765 (16), 3.7905 (15) and 3.8231 (16) Å, may further stabilize the structure. There are also weak C-H⋯π inter-actions present.

| S-EPMC4438816 | biostudies-literature

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