Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Vahram V. Ghazaryan"'
Autor:
Gayane S. Tonoyan, Gerald Giester, Vahram V. Ghazaryan, Ruben Yu. Chilingaryan, Arthur A. Margaryan, Artak H. Mkrtchyan, Aram M. Petrosyan
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 80, Iss 9, Pp 916-920 (2024)
The crystal structure of hexaglycinium tetra-μ-iodido-octaiodidotriplumbate, (C2H6NO2)6[Pb3I12] or (GlyH)6[Pb3I12], is reported. The compound crystallizes in the triclinic space group P\overline{1}. The [Pb3I12]6− anion is discrete and located aro
Externí odkaz:
https://doaj.org/article/36ed8d6d9f814bc18ebae2db8cd19273
Autor:
Gayane S. Tonoyan, Gerald Giester, Vahram V. Ghazaryan, Ruben Yu. Chilingaryan, Arthur A. Margaryan, Artak H. Mkrtchyan, Aram M. Petrosyan
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 80, Iss 9, Pp 931-935 (2024)
The title compound, poly[bis(β-alaninium) [[dibromidoplumbate]-di-μ-dibromido]] {(C2H8NO2)2[PbBr4]}n or (β-AlaH)2PbBr4, crystallizes in the monoclinic space group P21/n. The (PbBr4)2− anion is located on a general position and has a two-dimensio
Externí odkaz:
https://doaj.org/article/75060c8ba042447ea592a67639189534
Publikováno v:
Structural Chemistry. 31:1919-1925
Two new crystalline compounds of l-cysteine have been obtained: bis-l-cysteinium sulfate (l-CysH)2SO4 (I) and l-cysteinium methanesulfonate (l-CysH)CH3SO3 (II). Both crystal structures belong to the orthorhombic space group P212121. They consist of o
Publikováno v:
Journal of Molecular Structure. 1182:317-326
In the present work we investigated salt formation in the L-histidine(L-His) + HI + H2O system. Single crystals of six salts have been obtained and their crystal and molecular structures have been determined: monoclinic (L-HisH)I (I), monoclinic (L-H
Autor:
Vahram V. Ghazaryan, Michel Fleck, Aram M. Petrosyan, L.S. Bezhanova, Gerald Giester, A.K. Atanesyan
Publikováno v:
Journal of Molecular Structure. 1173:770-775
A new form of l -histidinium 5-nitrouracilate has been obtained. It crystallizes in the triclinic space group P1, with two formula units in the unit cell, as opposed to the previously reported monoclinic polymorph. The 5-nitrouracilate anions form a
Publikováno v:
Journal of Molecular Structure. 1163:114-127
Reactions of l -arginine (L-Arg) and l -histidine (L-His) with sulfamic (NH2SO3H) and methanesulfonic (CH3SO3H) acids in aqueous media were investigated. The following salts (L-ArgH)(NH2SO3) (I), (L-ArgH)(CH3SO3) (II), (L-ArgH2)(CH3SO3)2 (III), (L-Hi
Publikováno v:
Journal of Molecular Structure. 1163:428-441
Crystalline salts l -alanine l -alaninium chloride (I), l -alanine l -alaninium bromide (II) and l -alanine l -alaninium iodide (III) were obtained, which have dimeric cations in the structure. The salts crystallize in the monoclinic crystal system w
Autor:
Vahram V. Ghazaryan, María Judith Percino, Subbiah Thamotharan, Aram M. Petrosyan, Michel Fleck, Gerald Giester
Publikováno v:
Journal of Fluorine Chemistry. 209:73-78
We report on synthesis, structural and vibrational spectroscopic characterization of the (SarH)6[F5Al-F-AlF5]F (I) salt. The compound (I) is the first salt of amino acids with a dimeric undecafluoridodialuminate [F5Al-F-AlF5]5− anion and the first
Halogenides of dimethylglycine in comparison with respective salts of glycine, sarcosine and betaine
Autor:
Aram M. Petrosyan, Vahram V. Ghazaryan, M. Wiesner, Michel Fleck, Zbigniew Tylczyński, Gerald Giester
Publikováno v:
Journal of Molecular Structure. 1158:106-121
We investigated salts formation in the DMG(dimethylglycine) HCl H2O, DMG HBr H2O and DMG HI H2O systems. In addition to previously known dimethylglycinium chloride (DMGH)Cl, we obtained and characterized (structurally and spectroscopically) the follo
l-Prolinium l-proline halogenides: a comparison of the respective chloride, bromide and iodide salts
Publikováno v:
Journal of Molecular Structure. 1243:130851
Structures and vibrational spectra of l -prolinium l -proline chloride (I), l -prolinium l -proline bromide (II) and l -prolinium l -proline iodide (III) were analyzed at 100K, 200K and room temperature (RT). The salts (I) and (II) are isostructural