Synthese und Kristallstruktur von 2,4-Bis(methyIamino)-2-pentenium - chlorid [1] / Synthesis and Crystal Structure of 2,4- Bis(methylamino)-2-pentenium Chloride [1]

2000 ◽  
Vol 55 (3-4) ◽  
pp. 345-346 ◽  
Author(s):  
Norbert Kuhn ◽  
Joanna Fahl ◽  
Stefan Fuchs ◽  
Gerald Henkel

Abstract The vinamidinium chloride C7H15N2Cl (5) is obtained from the corresponding vinamidine C7H14N2 (4) and HCl; the X-ray structure reveals a polymeric nature consisting of w-shaped cations connected with the chloride ions by hydrogen bonds

2013 ◽  
Vol 634-638 ◽  
pp. 451-455
Author(s):  
Yan Yang ◽  
Liu Ting Yan ◽  
Rong Huan Qin ◽  
Wen Gui Duan

The lead(II) Complex constructed with 5-hydroxyisophthalic acid, [Pb3(5-hipa)2]n•4H2O(1), (5-hipa = 5-hydro- xyisophthalic acid) has been synthesized by hydrothermal methods and structurally characterized by elemental analysis, IR and X-ray single crystal diffraction. In trinuclear symmetrical complex 1, Pb1 is four-coordinated, Pb2 and Pb3 are three-coordinated by 5-nitroisophthalic acid groups, respectively, which is further connected through intermolecular hydrogen bonds resulting in a three-dimensional (3D) network.


2001 ◽  
Vol 56 (10) ◽  
pp. 1020-1024
Author(s):  
Stephan Roth ◽  
Wolfgang Schnick

Abstract The title compound (dmaaH)2(dmaH)2[P12S12N12(NH)2] · 4 dmaa (1) was obtained by crys­tallization from a saturated solution of anhydrous P12S12N8(NH)6 in N,N-dimethylacetamide (dmaa) as large single crystals. According to the X-ray structure determination (P21/n, a = 1421.8(1), b = 1556.5(2), c = 1645.8(1) pm, ß = 112.207(6)°, Z = 2, 6388 observed reflections, R1 = 0.046, wR2 = 0.111) the anionic cage is built up from twelve P3N3 rings in boat confor­ mation. N,N-dimethylammonium ions (dmaH+) are directly connected to the cage, and pairs of N,N-dimethylacetamidonium ions (dmaaH+) and N,N-dimethylacetamide molecules (dmaa) are interconnected by hydrogen-bonds.


2017 ◽  
Vol 73 (7) ◽  
pp. 1048-1051 ◽  
Author(s):  
Raphael Enoque Ferraz de Paiva ◽  
Douglas Hideki Nakahata ◽  
Pedro Paulo Corbi

A gold(III) salt of composition [AuCl2(C12H8N2)]PF6was prepared and characterized by elemental and mass spectrometric analysis (ESI(+)–QTOF–MS),1H nuclear magnetic resonance measurements and by single-crystal X-ray diffraction. The square-planar coordination sphere of AuIIIcomprises the bidentate 1,10-phenanthroline ligand and two chloride ions, with the AuIIIion only slightly shifted from the least-squares plane of the ligating atoms (r.m.s. = 0.018 Å). In contrast to two other previously reported AuIII-phenantroline structures that are stabilized by interactions involving the chlorido ligands, the packing of the title compound does not present these features. Instead, the hexafluoridophosphate counter-ion gives rise to anion...π interactions that are a crucial factor for the crystal packing.


2011 ◽  
Vol 418-420 ◽  
pp. 59-62
Author(s):  
Yan Yang ◽  
Liu Ting Yan ◽  
Xiao Li ◽  
Rong Huan Qin ◽  
Wen Gui Duan

The Cobalt (Ⅱ) Complex constructed with 5-nitroisophthalic acid and 2,2’-bibenzimidazole, [Co(H2bibim)2( 5-nipa)] (1), (H2bibim =2,2’-bibenzimidazole, 5-nipa=5-nitroisophthalic acid) have been synthesized by hydrothermal methods and structurally characterized by elemental analysis, IR and X-ray single crystal diffraction. Complex 1 has six coordinated by two H2bibim ligands and one 5-nitroisophthalic acid groups that is further connected though intermolecular hydrogen bonds and resulting in a three-dimensional (3D) network.


1992 ◽  
Vol 47 (4) ◽  
pp. 460-464 ◽  
Author(s):  
Klaus Brodersen ◽  
Jürgen Hofmann

The structure of bis(m-aminobenzonitrile)dimercury(I) dinitrate, [Hg2(m -NH2C6H4CN)2](NO3)2 has been determined by single crystal X-ray diffraction techniques and refined to an Rw-value of 0.022. The crystals are triclinic, space group P1 with a = 5.4878(1) Å, b = 8.4085(1) Å, c = 9.6062(1) Å, α = 92.599(3)°, β = 94.763(3)°, γ = 89.614(3)° and Z = 1.The Hg22+-ion [Hg-Hg 2.524(1) Å] is approximately axially coordinated to amino nitrogen atoms [Hg - N 2.209(4) Å, Hg - Hg - N 169.5(3)°]. Additional amino hydrogen bonds to oxygen are building chains along the b-axis containing units of L - Hg - Hg - L groups.


2004 ◽  
Vol 59 (9) ◽  
pp. 980-984 ◽  
Author(s):  
Daniel Drewes ◽  
Eva Melanie Limanski ◽  
Bernt Krebs

The new polyoxotungstate (NH4)6Na4[Ni4(H2O)2(AsW9O34)2] · 20 H2O (1) was synthesized in aqueous solution and characterized by IR and UV/Vis spectroscopy, energy dispersive X-ray fluorescence and single-crystal X-ray analysis. It contains the tetra-nickel substituted [Ni4(H2O)2(AsW9O34)2]10− polyoxoanion, in which the four Ni atoms are in a common plane and form a regular rhombus. 1 crystallizes in the monoclinic crystal system, space group P21/n with a = 11.849(2), b = 16.718(3), c = 21.243(4) Å , β = 100.48(3)◦, and Z = 2. The anions are linked via hydrogen bonds and sodium cations.


2011 ◽  
Vol 279 ◽  
pp. 174-178
Author(s):  
Sheng Liang Ni ◽  
Yue Meng ◽  
Pei Song Tang

Reactions of a freshly prepared Zn(OH)2-2x(CO3)x×yH2O precipitate, formic acid with 2,9’-dimethyl-1,10’-phenanthroline in CH3OH/H2O afforded [Zn(C14H12N2)(HCO2)2]·2H2O. The title compound was structurally characterized by X-ray diffraction methods. It consists of complex molecules [Zn(C14H12N2)(HCO2)2] in which Zn atoms are hexa-coordinated by two N atoms of one phenanthroline ligand and four O atoms of two bidentate formate groups. In the crystal, molecules are connected by O–H···O hydrogen bonds forming layers parallel to (010), and the resulting layers are further linked 3D framework along [100] by π-π packing interactions.


2020 ◽  
Vol 76 (10) ◽  
pp. 1675-1678
Author(s):  
Xuan Tu Nguyen ◽  
Thuy Quynh Le ◽  
Tra My Bui Thi ◽  
Dinh Hung Mac ◽  
Thai Thanh Thu Bui

The synthesis and crystal structure of peptide 6,6′-dimethyl biphenyl hybrid are described. The title compound was synthesized by reaction between 6,6′-dimethyl-[1,1′-biphenyl]-2,2′-dicarbonyl dichloride in CH2Cl2, amine HN–proline–phenylalanine–alanine–COOMe and Et3N at 273 K under N2 atmosphere and characterized by single-crystal X-ray diffraction. The asymmetric unit contains one peptide molecule and a quarter of a water molecule. A disorder of a methyl and methoxycarbonyl group of one alanine residue is observed with occupancy ratio 0.502 (6):0.498 (6). The structure is consolidated by intra- and intermolecular hydrogen bonds.


2005 ◽  
Vol 70 (2) ◽  
pp. 237-246
Author(s):  
He Liu ◽  
Jingyan Wang ◽  
Bohua Zhong

17-Allyl-4,5-anhydro-7α-[(R)-1-hydroxy-1-methyl-3-(2-thienyl)propyl]-6-methoxy-6,14-ethanomorphinan-3,4,5-triol (thienorphine 6) was synthesized and structurally characterized by NMR spectra, ESI-MS and X-ray diffraction. The crystal structure indicates that thienorphine maintained the main rigid structure of morphine while containing the C6-C14 ethano bridge. The allyl group is located in the equatorial position as expected. The packing diagram of 6 showed the presence of intramolecular and intermolecular O-H···O hydrogen bonds linking the molecules into a zigzag infinite quasi-one-dimensional chain structure.


1991 ◽  
Vol 46 (12) ◽  
pp. 1684-1688 ◽  
Author(s):  
Klaus Brodersen ◽  
Jürgen Hofmann

[Hg2(o-NH2C6H4CN)2](NO3)2 is formed by the reaction of o-aminobenzonitrile with dimercury(I)-dinitrate in methanol. It crystallizes in the monoclinic space group P 2/c with a = 8.6819(5)Å, b = 5.3696(6)Å, c = 19.7645(8)Å, β = 95.138(12)° and Ζ = 2. The crystal structure has been determined by single crystal X-ray diffraction with applied gaussian absorption correction and refined to an Rw-value of 0.027.The Hg22+-ion is coordinated to both amino nitrogen atoms. Strong hydrogen bonds and bridging nitrate ions lead to chain structure.


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