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1
100%
Polish Journal of Chemistry
EN Reactions of 2,4-disubstituted thiosemicarbazides with acetone catalyzed by sulfuric acid gave cyclic 1,2,4-triazolidine-3-thione derivatives. The same reaction with no catalyzer gave open-chain compounds. Synthesis and X-ray studies of some 1,2,4-triazolidine-3-thiones are described.
2
100%
Polish Journal of Chemistry
1999 Vol. 73, nr 8 1283-1291
EN The isostructural compounds were X-ray structurally characterized on single crystals. Molecule of diallylamine attaches to three copper(I) atoms of the same inorganic fragment. Copper atoms have different coordination spheres.
3
100%
Polish Journal of Chemistry
1999 Vol. 73, nr 11 1771-1775
EN The crystal structure of the complex was determined by X-ray diffraction method. The dinuclear complex is centrosymmetric with two dependent symmetrically BiPcI unita. The bismuth atom is coordinated by four isoindole nitrogen atoms and two bridged iodine atoms.
4
100%
Polish Journal of Chemistry
1999 vol. 73 nr 4 707-716
EN The low-temperature crystal structures of 4-(1-naphthyl)[2.2]paracyclophane (1), C26H22, orthorhombic, Pca21, a=15.860(3), b=7.2871(14), c=30.954(5) A, Z=8(two independent molecules) and 4-{1-(2'-methyl)naphthyl}[2.2]paracyclophane (2), C27H24, monoclinic, P21/c, a=8.0243(6), b=14.8073(14), c=16.239[...]
5
100%
Materials Science Poland
2005 Vol. 23, No. 4 883--890
EN Mn3Fe4V6O24 compound was prepared using the solid-state reaction method. The magnetic and crystal structural studies were carried out by using neutron diffraction methods at the temperatures of 10 and 290 K. Down to 10 K no long-range magnetic order was observed. Essential differences in the positio[...]
6
80%
Polish Journal of Chemistry
1999 vol. 73 nr 2 321-332
EN Reaction of 2-aminonicotinic acid hydrazide with cyanogens bromide allowed to obtain 2-amino-5-(2-amino-3-pyridyl)-1,3,4-oxadiazole (2), which with 2- or 3-chloropropionyl chloride and 4-chlorobutyryl chloride gave 5-(2-amino-3-pyridyl)-2-(2-chloroproprionylamino)-1,3,4-oxadiazole (5), 5-(2-amino[...]
7
80%
Polish Journal of Chemistry
2009 Vol. 83, nr 11 1937-1944
EN Two imidazole derived supra molecular complexes (N,N'-butylenebis(imidazole) : (tere - phthalic acid)2 (1), and N,N'-butylenebis(imidazole) : sebacic acid (2)) were synthesized and structurally characterized by X-ray crystallography. Compounds 1 and 2 both crystallize in the triclinic P-1 space grou[...]
8
80%
Polish Journal of Chemistry
2009 Vol. 83, nr 11 1929-1936
EN The complex of dinuclear palladium(II), [Pd2(C7H4NS2)4]źC2H5OH, has been synthe - sized and characterized by elemental analysis, IR, UV-Vis spectra, X-ray single crystal diffraction and density functional theory (DFT) calculations. The structure of [Pd2(C7H4NS2)4]źC2H5OH consists of binuclear units [...]
9
80%
Polish Journal of Chemistry
2007 Vol. 81, nr 12 2031-2038
EN The crystal structure of TbKW(CN)8ź7H2O has been solved from X-ray single crystal diffraction data. The compound crystal lizes in the triclinic system, space group P-1, lattice parameters a = 7.6713(7), b = 9.2686(8), c = 14.5523(14) A, a = 80.506(11), b = 87.580(11), g = 77.751(10)°, V = 997.27(16)[...]
10
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Polish Journal of Chemistry
2009 Vol. 83, nr 7 1233-1240
EN Two Schiff base com pounds, C15H12BrClN2O3×2CH3OH (1) and C14H10BrClN2O3×CH3OH (2), have been synthesized by the condensation reactions of equimolar quantities of 3-bromo-5-chlorosalicylaldehyde with 3-methoxy benzohydrazide and 3-hydroxy - benzohydrazide, respectively, in methanol solutions. Compou[...]
11
80%
Polish Journal of Chemistry
2008 Vol. 82, nr 7 1343-1343
EN A novel co balt(II) coordination polymer [Co(bpy)2(m2-S6)]n 1 (bpy = 2,2'-bipyridine) has been synthesized by low-tempera ture solid-state reaction. Single crystal X-ray analyses reveal that compound 1 pos sesses a new type of two-dimensional (2-D) frame work structure. Each Co(II) ion, located on a[...]
12
80%
Polish Journal of Chemistry
2008 Vol. 82, nr 11 2049-2055
EN The crystal structure of the R3Cu4Sn4 ternary stannides (R = Tb and Dy) was determined by single crystal X-ray diffraction method. Both investigated compounds crystallize in the Gd3Cu4Ge4 structure type (space group Immm). The detailed structure analysis defined the "tolerance" ranges of the atomic [...]
13
80%
Polish Journal of Chemistry
2008 Vol. 82, nr 8 1597-1597
EN o-Hydroxyacetophenone phenylhydrazone has been synthesized and characterized by elemental analysis, IR and electronic spectroscopy. The X-ray crystal structure study shows that the compound contains two crystallographically independent molecules in the asymmetric unit and crystallizes in the monocli[...]
14
80%
Polish Journal of Chemistry
2007 Vol. 81, nr 5-6 1191-1199
EN 1-(4-Chloro-benzenesulfonyl)-piperidin-4-yl-diphenyl-methanol was synthesized by the condensation of [piperidin-4-yl]-diphenyl-methanol with p-chlorobenzene sulfonylchloride in methylene dichloride as solvent and triethylamine as the base. The compound obtained was characterized by spectroscopic tec[...]
15
80%
Polish Journal of Chemistry
2007 Vol. 81, nr 5-6 1201-1218
EN Three new acid salts of two monocarboxylic acids were obtained and their crystal structure analysis performed using experimental data collected with KM-4 diffractometer. The crystal structures of hydrogen bis(sulfosalicylates) of sodium and potassium contain hydrogen-bonded acid-anion dimers of very[...]
16
80%
Polish Journal of Chemistry
EN The interactions between the components in the Y2S3-PbS-SnS2 system at 770 K were determined using X-ray powder diffraction. The existence of the Y2PbS4 (unknown structure) compound in the Y2S3-PbS section and the PbSnS3 (PbSnS3 structure type, space group Pnma) compound in the PbS-SnS2 section was [...]
17
80%
Polish Journal of Chemistry
EN Phase equilibria in the Ho2X3-Cu2X-ZX2 (Z = Si, Ge; X = S, Se) systems at 870 K were determined using X-ray single crystal and powder diffraction. The existence of the HoCuS2, HoCu5 X4 compounds and the Ho(2+x)/3Cu2-xS2 (0 _ x _ 0.61), Ho(2+x)/3Cu2-xSe2 (0 _ x _ 1) solid solutionswas confirmed in th[...]
18
80%
Polish Journal of Chemistry
EN Two new N-aminoimides, 2-amino-4,7-epoxy-3a,4,7,7a-tetrahydro-1H-isoindole- 1,3(2H)dione (I) and 2-amino-8-isopropyl-5-methyl-4,7-ethane-3a,4,7,7a-tetrahydro- 1H-isoindole-1,3(2H)-dione (II), have been synthesized. Both compounds are exo,cis isomers. Crystals of (I) and (II) are noncentrosymmetric w[...]
19
80%
Polish Journal of Chemistry
1998 Vol. 72, nr 7 1255-1268
EN 1,5-Bis(p-toluenesulphonamido)-2,4,6.8-tetranitronaphthalene (1,5-TSATNN) [alternative name: N,N'-(2,4,6,8-tetranitronaphthalene-1,5-diyl)-bis(p-toluenesulphonamide)] crystalized from acetic acid or pyridine with three molar equivalents of solvent. The compound with pyridine is shown to be a 1:1 add[...]
20
80%
Polish Journal of Chemistry
1998 Vol. 72, nr 8 1999-2008
EN The low-temperature crystal structures of 4-methylphenyl[2.2]paracyclophane (1), C23H22, orthorhombic, Pbca, a=12.880(2), b=7.4234(12), c=34.425(6) A, Z=8; 2,6-dimethyl-phenyl[2.2]-paracyclophane (2), C24H24, orthorhombic, P2-12-12-1, a=8,593(3), b=12.550(4), c=15.745(4) A, Z=4, and 2,4,5-trimethylp[...]
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