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SYNTHESIS, CRYSTAL STRUCTURE, AND DFT STUDIES OF ETHYL 4-HYDROXY-2-(4-METHOXYPHENYL)-5-OXO- 1-PHENYL-2,5-DIHYDRO-1H-PYRROLE-3-CARBOXYLATE. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621010066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Crystal structure, vibrational and optic properties of 2-N-methylamino-3-methylpyridine N-oxide - Its X-ray and spectroscopic studies as well as DFT quantum chemical calculations. J Mol Struct 2019; 1195:208-219. [PMID: 32336784 PMCID: PMC7173143 DOI: 10.1016/j.molstruc.2019.05.064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 04/27/2019] [Accepted: 05/17/2019] [Indexed: 01/10/2023]
Abstract
The crystal and molecular structure and physicochemical properties of 2-N-methylamino-3-methylpyridine N-oxide (MA3MPO) have been studied. MA3MPO was synthesized from 2-amino-3-methylpyridine by several steps to form colorless crystals suitable for crystallographic analysis. The data reveal that MA3MPO crystallizes in the monoclinic space group P21/n. The studied compound contains a nearly flat triply substituted pyridine skeleton whose structure is stabilized by an intramolecular N–H⋅⋅⋅O hydrogen bond. The N-oxide molecules are connected together by weak C–H⋯O hydrogen bonds, an acceptor of which is the oxygen atom from the N-oxide group. This leads to creation of two-dimensional network of hydrogen bonds. Its IR, Raman, UV–Vis and luminescence spectra have been measured and analyzed on the basis of DFT and NBO quantum chemical calculations in which the B3LYP/6-311++G(d,p) approach was applied. The distribution of the electron levels in the studied compound has been analyzed in terms of the possibility of its participation in the ligand-to-lanthanide ion energy transfer. The 2-N-methylamino-3-methylpyridine N-oxide (MA3MPO) was synthesized and characterized. The studied compound structure is stabilized by an intramolecular N–H⋯O hydrogen bond. The molecules are connected together by weak C–H⋯O hydrogen bonds. The amino group plays the role of effective hydrogen-bond donor but the N-oxide group is a hydrogen-bond acceptor. X-ray, IR, Raman and DFT methods recognized the existence of the intramolecular N–H⋯O hydrogen bond in the studied compound.
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Single Crystal X-Ray Structural Analysis of Two Polymorphs of Ethyl 2-(2-Chlorophenyl)-4-Hydroxy-5-Oxo-1-Phenyl-2,5-Dihydro-1H-Pyrrole-3-Carboxylate. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619040188] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Transformation of molecular compounds with Ba(Sr)/Al/Si and Ca(Sr, Ba)/Ti(Zr, Hf)/Si heteroelements as new efficient route to metal silicate materials. Dalton Trans 2019; 48:4283-4298. [PMID: 30859174 DOI: 10.1039/c8dt03796e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silicon-based moieties were anchored in heterometallic alkoxide platforms to obtain molecular clusters based on the M-O-M'-O-Si motif for the generation of mixed-metal silicate materials. Single-source molecular precursors with structures [M{(μ-ddbfo)2Al(OSiPh3)2}2], where dbbfoH = 2,3-dihydro-2,2-dimethylbenzofuran-7-ol and M = Ba (1), Sr (2), [Sr4Ti2(μ6-O)(μ3,η2-OCH2CH2OMe)8(η-OCH2CH2OMe)2(OSiPh3)4] (3), [Sr4M'2(μ4-OH)(μ3,η2-OCH2CH2OMe)4(μ,η2-OCH2CH2OMe)6(μ-X)(OSiPh3)4] (4, with M' = Zr and X = Cl; 5 with M' = Hf and X = OH), [Sr3Hf2(μ5-O)(μ3,η2-OCH2CH2OMe)4(OCH2CH2OMe)4(OSiPh3)4] (6), and [Ca2M'2(μ3-OH)2(μ,η2-OCH2CH2OMe)4(η2-HOCH2CH2OMe)2(η-OCH2CH2OMe)2(OSiPh3)4] for M' = Zr (7), Hf (8), were prepared by substitution of methyl groups, using Ph3SiOH or chloride atoms with KOSiPh3, in [M{(μ-ddbfo)2AlMe2}2] (M = Sr, Ba) or [M4M'2(μ6-O)(μ3,η2-OCH2CH2OMe)8(OCH2CH2OMe)2(HOCH2CH2OMe)xCl4] (M = Ca, Sr, Ba, M' = Ti, Zr, Hf and x = 0, 4). The precursors were characterized by elemental analysis, NMR spectroscopy, and single-crystal X-ray structural analysis. Thermal decomposition of compounds 1-8 at 1000 °C led to formation of ceramic materials that consisted of mixed-metal oxide nanocrystallites embedded in an amorphous SiO2 matrix. Compounds 1 and 2 decomposed to BaAl2Si2O8 and SrAl2Si2O8 aluminosilicates, 4 gave a mixture of SrSiO3, ZrO2, SrZrO3 and Sr7ZrSi6O21, 5 and 6 gave mixtures of various compounds, including SrHfO3, Hf0.96Si0.04O2, and SiO2, 7 lead to CaZrO3, ZrO2 and Ca3ZrSi2O9 and 8 gave a HfO2, Ca2HfSi4O12 and SiO2 phase. The thermolysis of compound 3 gave SiO2 particles of average size 40-90 nm, which contained spherical SrTiO3, SrSiO3 and Sr2TiSi2O8 nanocrystallites of diameter 5-16 nm.
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An unusual diverse coordination of silver(I) with N-allylthiohydantoin ligand in the presence of benzene- and p-toluenesulfonate anions. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.09.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Crystallographic and spectroscopic studies as well as DFT quantum chemical calculations of hydrazo-bond conformation in 4,4′-dimethyl-3,3′,5,5′-tetranitro-2,2-hydrazobipyridine. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.07.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Unexpected complexation of allylpseudothiohydantoin hydrochlorides towards CuX (X = Cl, NO3, ClO4, BF4, 1/2SiF6). The first known examples of joint CuI(Cl,ClO4) and CuI(Cl,BF4) π-complexes. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1286012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Correction: New tetranuclear manganese clusters with [Mn II3Mn III] and [Mn II2Mn III2] metallic cores exhibiting low and high spin ground state. Dalton Trans 2017; 46:4118. [DOI: 10.1039/c7dt90033c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for ‘New tetranuclear manganese clusters with [MnII3MnIII] and [MnII2MnIII2] metallic cores exhibiting low and high spin ground state’ by M. Sobocińska et al., Dalton Trans., 2016, 45, 7303–7311.
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New tetranuclear manganese clusters with [MnII3MnIII] and [MnII2MnIII2] metallic cores exhibiting low and high spin ground state. Dalton Trans 2016; 45:7303-11. [DOI: 10.1039/c5dt04869a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two tetranuclear mixed-valent clusters with the metallic [MnII3MnIII] and [MnII2MnIII2] cores were synthesized as molecular nanomagnets with the low and high spin in the ground state.
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Facile synthesis and crystal structure of 1,5-dimethyl-6-thioxo-1,3,5-triazinane-2,4-dione. J STRUCT CHEM+ 2015. [DOI: 10.1134/s0022476615040332] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Crystal structure of 2-[benzyl-(7-oxo-cyclohepta-1,3,5-trienyl)-amino]-N-cyclohexylpropanamide. J STRUCT CHEM+ 2015. [DOI: 10.1134/s0022476615030105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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The hydrazo-bond in 4,4'-dimethyl-3,3'-dinitro-2,2'-hydrazobipyridine - crystal structure, conformation and vibrational characteristics. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 127:303-309. [PMID: 24632239 DOI: 10.1016/j.saa.2014.02.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 02/07/2014] [Accepted: 02/14/2014] [Indexed: 06/03/2023]
Abstract
The crystal and molecular structure of 4,4'-dimethyl-3,3'-dinitro-2,2'-hydrazobipyridine have been determined by X-ray diffraction and quantum chemical DFT analysis. The title compound crystallizes in P1¯ space group, with one-half molecule in the asymmetric unit. The molecular structure is stabilized by intramolecular NH···O hydrogen bonds. The molecules are linked by a combination of weak intermolecular CH⋯O interactions and also aromatic π-π stacking. The molecular structure of the studied compound has been determined using the DFT B3LYP/6-311G(2d,2p) approach and compared to that derived from X-ray studies. The IR and Raman wavenumbers have been calculated for the optimized geometry of a possible monomer structural model. The structural and vibrational properties of the intramolecular NH···O interaction are described.
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The role of hydrogen bonds in the crystals of 2-amino-4-methyl-5-nitropyridinium trifluoroacetate monohydrate and 4-hydroxybenzenesulfonate - X-ray and spectroscopic studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 123:342-351. [PMID: 24412787 DOI: 10.1016/j.saa.2013.12.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 11/21/2013] [Accepted: 12/05/2013] [Indexed: 06/03/2023]
Abstract
Two new organic-organic salts, 2-amino-4-methyl-5-nitropyridinium trifluoroacetate monohydrate (AMNP-TFA), and 2-amino-4-methyl-5-nitropyridinium 4-hydroxybenzenesulfonate (AMNP-HBS), were obtained and characterized by means of FT-IR, FT-Raman and single crystal X-ray crystallography. In the former crystal, the cations, anions and water molecules are linked into layers by three types of hydrogen bonds, NPH⋯O, NAH⋯O and OH⋯O. These layers are connected by weaker CH⋯O hydrogen bonds. In the latter crystal, the cations and anions form one-dimensional structure through a number of hydrogen-bonding interactions involving the OH, NH(+) and NH2 groups as donors. In this case the NPH⋯O and NAH⋯O hydrogen bonds are formed. The combination of interactions between cations and anions results in the formation of columns. Additionally, there are π-π stacking interactions between the columns. The obtained X-ray structural data are related to the vibrational spectra of the studied crystals.
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Comprehensive physicochemical studies of a new hybrid material: 2-amino-4-methyl-3-nitropyridinium hydrogen oxalate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 117:434-441. [PMID: 24013114 DOI: 10.1016/j.saa.2013.08.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 07/30/2013] [Accepted: 08/02/2013] [Indexed: 06/02/2023]
Abstract
A new organic-organic salt, 2-amino-4-methyl-3-nitropyridinium hydrogen oxalate (AMNPO), and its deuterium analogue have been synthesized and characterized by means of FT-IR, FT-Raman, DSC and single crystal X-ray studies. The DSC measurements and temperature dependence of the IR and Raman spectra in the range 4-295 K show that it undergoes a reversible phase transition at ~240 K. At room temperature it crystallizes in noncentrosymmetric space group P21. The unit-cell is built of the 2-amino-4-methyl-3-nitropyridinium cations and oxalate monoanions which are connected via the N-H···O and O-H···O hydrogen bonds. The geometrical and hydrogen bond parameters are similar for non-deuterated (at 120 and 293 K) and deuterated compounds (at 90K). The phase transition is probably a consequence of order-disorder transition inside of hydrogen network. The 6-311G(2d,2p) basis set with B3LYP functional have been used to discuss the structure and vibrational spectra of the studied compound.
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Single crystal X-ray structure of 2,6-di-tert-butyl-4-(3-(4-chlorophenyl)-4-methyl-4,5-dihydroisoxazol-5-yl)phenol 1,4-dioxane hemisolvate. J STRUCT CHEM+ 2013. [DOI: 10.1134/s0022476613010368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Molecular and crystal structures, vibrational studies and quantum chemical calculations of 3 and 5-nitroderivatives of 2-amino-4-methylpyridine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 96:952-962. [PMID: 22939283 DOI: 10.1016/j.saa.2012.07.121] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 07/16/2012] [Accepted: 07/17/2012] [Indexed: 06/01/2023]
Abstract
The crystal structures of 2-amino-4-methyl-3-nitropyridine (I), 2-amino-4-methyl-3,5-dinitropyridine (II) and 2-amino-4-methyl-5-nitropyridine (III) have been determined. The compounds crystallize in the monoclinic P2(1)/n, triclinic P-1 and monoclinic C2/c space groups, respectively. These structures are stabilized by a combination of N-H···N and N-H···O hydrogen bonds and exhibit layered arrangement with a dimeric N-H···N motif in which the molecular units are related by inversion centre. The molecular structures of the studied compounds have been determined using the DFT B3LYP/6-311G(2d,2p) approach and compared to those derived from X-ray studies. The IR and Raman wavenumbers have been calculated from the optimized geometry of monomers and dimers formed in the unit cell and compared to the experimental values obtained from the spectra.
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Single crystal X-ray structure of 2-[({[(4-methylphenyl)sulfonyl]methyl} amino)carbonyl]-1,3-dioxo-2,3-dihydro-1H-inden-2-yl 2-thiophenecarboxylate. J STRUCT CHEM+ 2012. [DOI: 10.1134/s0022476611060072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Charge density study of phosphoglycolate monopotassium salt. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311079414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Synthesis, photophysics and excited state structure of 1,8-di(p-tolyl)-1,3,5,7-octatetrayne. J Photochem Photobiol A Chem 2011. [DOI: 10.1016/j.jphotochem.2010.10.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Order–disorder phase transitions and their influence on the structure and vibrational properties of new hybrid material: 2-Amino-4-methyl-3-nitropyridinium trifluoroacetate. Chem Phys 2010. [DOI: 10.1016/j.chemphys.2010.05.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Novel anionic water-containing inorganic fragment in [4-NH2PyH]8[Bi2Cl11] [Bi2Cl9(H2O)2]: Structural characterization, thermal, dielectric and vibrational properties. Polyhedron 2010. [DOI: 10.1016/j.poly.2010.03.017] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Isomorphous phosphonoacetic acid salts with magnesium(II), manganese(II), cobalt(II), zinc(II) and copper(II). ACTA ACUST UNITED AC 2009. [DOI: 10.1524/zkri.217.11.614.20779] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
All crystals of the title compounds, with general formula M2+(C2H4O5P–)2(H2O)2, (MAP), are isomorphous and crystallize in the space group P1̅ with Z = 2. The two crystallographically independent M2+ cations are situated on a center of symmetry and are octahedrally coordinated by two phosphonate monoanions and two water molecules. In the case of Cu2+ cation, Jahn-Teller effect causes strong extension of two Cu—O bonds. The mono anions coordinate the metal ions by one carboxylic and one phosphonate oxygen atom, which is facilitated by their specific overall conformation. In each monoanion, one of the phosphonate O atoms is nearly antiperiplanar ap to the carboxylic C atom, and the remaining phosphonate O atoms are nearly gauche (+sc and –sc) with respect to the mentioned C atom. The carboxylic O atoms are in positions close to +sc and –ac in relation to the phosphonate P atom. The complex molecules form well separated layers in all MAP compounds. The phosphonate and carboxylic groups act as donors in medium strong and weak intermolecular O—H...O hydrogen bonding and, as acceptors, in C—H...O hydrogen interactions in all structures. Additionally both crystallographically independent water molecules are donors of weak hydrogen bonding to phosphonate oxygen atoms from adjacent complex molecules.
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Crystal structure, properties and phase transitions of morpholinium tetrafluoroborate [C4H10NO][BF4]. J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2009.04.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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1-Allyl derivatives: Synthesis and crystal structures for [(NH2C5H4N(C3H5))2Cu3Cl3(NO3)2] and [C9H7N(C3H5)Cu(NO3)2]. RUSS J COORD CHEM+ 2009. [DOI: 10.1134/s1070328409060104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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π-complexes of copper(I) with but-2-yne-1,4-diol. Synthesis and crystal structure of the anionic π-complex (PipH2)[CuCl2(HOCH2C≡CCH2OH)]2 · H2O ((PipH2)2+ is the Piperazinium Cation). RUSS J COORD CHEM+ 2009. [DOI: 10.1134/s1070328409040125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Electrostatic MO-O (methanol) bond in benzyltriphenylphosphonium trans-tetrachloro(methanol)oxomolybdate(V). J STRUCT CHEM+ 2009. [DOI: 10.1007/s10947-008-0196-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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The Cu(I) thiocyanate complexes with N-allylquinolinium: Synthesis and crystal structures of [C9H7NC3H5]Cu(SCN)2 and [C9H7NC3H5]Cu2(SCN)3. RUSS J COORD CHEM+ 2008. [DOI: 10.1134/s1070328408100084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Structural and dielectric properties of thiazolium chlorobismuthate(III) and chloroantimonate(III). J Mol Struct 2008. [DOI: 10.1016/j.molstruc.2008.02.048] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Copper(I) π-Complexes with 2-Butyne-1,4-diol. Synthesis and Crystal Structure of Na[CuCl2(HOCH2C≡CCH2OH)]·2H2O. Z Anorg Allg Chem 2008. [DOI: 10.1002/zaac.200700470] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Combined effect of the ΔPhe or ΔAla residue and thep-nitroanilide group on a didehydropeptides conformation. Biopolymers 2008; 89:220-34. [DOI: 10.1002/bip.20897] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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X-ray analyses, spectroscopic and magnetic properties of [Cu4(succinato)(tpmc)2](ClO4)6·2C2H5OH·4H2O and [Cu2(C6H5COO)tpmc](ClO4)3·0.5CH3OH·0.5H2O complexes. J Mol Struct 2008. [DOI: 10.1016/j.molstruc.2007.02.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Synthesis, structure, spectral and magnetic properties of 4-methoxy- and 3-methylsalicylatocopper(II) complexes with 2-pyridylmethanol. J COORD CHEM 2007. [DOI: 10.1080/00958970701272565] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Copper complexes with N-allylisoquinolinium halides: Synthesis and crystal structures of [C9H7N(C3H5)]2CuIICl2.86Br1.14, [C9H7N(C3H5)CuIBr2] · H2O, and [C9H7N(C3H5)CuIBr2]. RUSS J COORD CHEM+ 2007. [DOI: 10.1134/s1070328407070056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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π-Complexes of Copper(I) with Terminal Alkynes. Synthesis and Crystal Structure of [(HC≡CCH2NH3)(Cu2Br3)] π-Complex. Z Anorg Allg Chem 2007. [DOI: 10.1002/zaac.200600223] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Molecular complexes of homologous alkanedicarboxylic acids andD-tartaric acid with isoniazid. Acta Crystallogr A 2006. [DOI: 10.1107/s0108767306095626] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Methoxycarbonylation of Iodobenzene in Ionic Liquids. A Case of Inhibiting Effect of Imidazolium Halides. Adv Synth Catal 2006. [DOI: 10.1002/adsc.200606142] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Low-temperature and high-pressure structural behaviour of NaBi(MoO4)2—an X-ray diffraction study. J SOLID STATE CHEM 2005. [DOI: 10.1016/j.jssc.2005.05.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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From dihydroxyacetone (DHA) to dihydroxyacetone phosphate (DHAP) – solving the problem by the use of X-ray crystallography. Acta Crystallogr A 2004. [DOI: 10.1107/s0108767304098149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Crystal structure of di[tris(hydroxymethylene)methaneammonium] oxalate monohydrate, (C4H12NO3)2(C2O4)·H2O. Z KRIST-NEW CRYST ST 2003. [DOI: 10.1524/ncrs.2003.218.jg.37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Crystal structure of di[tris(hydroxymethylene)methaneammonium] oxalate monohydrate, (C4H12NO3)2(C2O4) · H2O. Z KRIST-NEW CRYST ST 2003. [DOI: 10.1524/ncrs.2003.218.1.37] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Olefin metatheses in metal coordination spheres: versatile new strategies for the construction of novel monohapto or polyhapto cyclic, macrocyclic, polymacrocyclic, and bridging ligands. Chemistry 2001; 7:3931-50. [PMID: 11596935 DOI: 10.1002/1521-3765(20010917)7:18<3931::aid-chem3931>3.0.co;2-y] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The broad applicability of the title reaction is established through studies of neutral and charged, coordinatively saturated and unsaturated, octahedral and square planar rhenium, platinum, rhodium, and tungsten complexes with cyclopentadienyl, phosphine, and thioether ligands which contain terminal olefins. Grubbs' catalyst, [Ru(=CHPh)(PCy3)2(Cl)2], is used at 2-9 mol% levels (0.0095-0.00042 M, CH2-Cl2). Key data are as follows: [(eta5-C5H4(CH2)6CH=CH2)Re(NO)(PPh3)-(CH3)], intermolecular metathesis (95 %); [(eta5-C5H5)Re(NO)(PPh3)(E(CH2CH=CH2)2)]+ TfO (E=S, PMe, PPh), formation of five-membered heterocycles (96-64%; crystal structure E = PMe); [(eta5-C5Me5)Re(NO)(PPh((CH2)6CH=CH2)2)(L)]n+ nBF4-(L/n = CO/1, Cl/0), intramolecular macrocyclization (94-89%; crystal structure L= Cl); fac-[(CO)3Re(Br)(PPh2(CH2)6CH=CH2)2] and cis-[(Cl)2Pt(PPh2(CH2)6CH=CH2)2], intramolecular macrocyclizations (80-71%; crystal structures of each and a hydrogenation product); cis-[(Cl)2Pt(S(R)(CH2)6CH= CH2)2], intra-/intermolecular macrocyclization (R=Et, 55%/24%; tBu, 72%/ <4%); trans-[(Cl)(L)M(PPh2(CH2)6CH=CH2)2] (M/L = Rh/CO, Pt/C6F5) intramolecular macrocyclization (90-83%; crystal structure of hydrogenation product, M=Pt); fac-[W(CO)3(PPh((CH2)6CH=CH2)2)3], intramolecular trimacrocyclization (83 %) to a complex mixture of triphosphine, diphosphine/ monophosphine, and tris(monophosphine) complexes, from which two isomers of the first type are crystallized. The macrocycle conformations, and basis for the high yields, are analyzed.
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High-temperature phase of trans-tetraaquabis(trifluoroacetato-O)manganese(II). Acta Crystallogr C 2000; 56 Pt 11:1310-1. [PMID: 11077279 DOI: 10.1107/s0108270100011215] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2000] [Accepted: 08/09/2000] [Indexed: 11/10/2022] Open
Abstract
The title compound, [Mn(CF(3)COO)(2)(H(2)O)(4)], crystallizes in the monoclinic space group C2/c. At about 215 K, it undergoes a reversible phase transition, which leads to crystal twinning. The crystal structure of the high-temperature phase was determined at 220 K. The Mn(2+) ion lies on a twofold axis and is octahedrally coordinated by two monodentate trifluoroacetate ligands in apical positions and by four equatorial aqua ligands, two of which lie on the twofold axis. Hydrogen-bonding interactions connect the complex molecules, generating a three-dimensional network.
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Lithium phosphoenolpyruvate monohydrate at 85 K. Acta Crystallogr C 2000; 56 ( Pt 7):818-9. [PMID: 10935091 DOI: 10.1107/s010827010000620x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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