Výsledky vyhledávání - "W. J. Vermin"

1,2,4-Triazole complexes. VI. The crystal structure of tris-μ-(4-methyl-1,2,4-triazole-N1,N2)-bis[(4-methyl-1,2,4-triazole-N1)bis(thiocyanato-N)manganese(II)], Mn2(C3H5N3)3(NCS)4

Autor: D. W. Engelfriet, G. C. Verschoor, W. J. Vermin

Publikováno v: Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 35:2927-2931

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9f66c2017eeb3819e63e759d4e4a4807
https://doi.org/10.1107/s0567740879010979

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Calpurmenin and its 13α-(2'-pyrrolecarboxylic acid) ester

Autor: M.H. Radema, C. Romers, A.J. de Kok, J.L. van Eijk, W. J. Vermin

Publikováno v: Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 35:1839-1842

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::061b55fe5b96b0f9e4a65359effd4783
https://doi.org/10.1107/s0567740879007871

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Two modifications of cobalt dipotassium tetrachloride

Autor: G. C. Verschoor, W. J. Vermin, D. J. W. Ijdo

Publikováno v: Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 32:3325-3328

High-temperature K2COC14: orthorhombic, a=26.838 (3), b=12.406 (1), c=7.262 (1 )~ , space group Pna21, Z = 1 2 , adopts a slightly modified fl-KzSO4 structure. Low-temperature K2COC14: monoclinic, a=6.801 (1), b=9.569 (1), c=12.757 (1)/~,, ,8=107.0 (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e6e24c476778b0a7f4188072f5f8d797
https://doi.org/10.1107/s0567740876010236

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Di-μ-chloro-bis{[bis(methoxyethoxy)ethane]cobalt(II)} hexachloroantimonate(V)

Autor: A. J. Kinneging, W. J. Vermin, S. Gorter

Publikováno v: Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 38:1824-1826

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3ca3fc6ddf64055d6e552c277dde7d68
https://doi.org/10.1107/s0567740882007328

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The use of Karle–Hauptman determinants in small-structure determinations

Autor: W. J. Vermin, R. A. G. de Graaf

Publikováno v: Acta Crystallographica Section A. 34:892-894

This paper illustrates the potential of Karle-Hauptman determinants for the solution of the phase problem in a 'difficult' small structure. An outline of the procedure followed is given. Suggestions for the future are presented, together with a discu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c2a54438e47e0ffa1470fd9b91efbe8
https://doi.org/10.1107/s0567739478001849

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ChemInform Abstract: SYNTHESIS, STRUCTURE, SPECTROSCOPY, AND MAGNETISM OF TRANSITION-METAL COMPOUNDS WITH BRIDGING HEXAFLUOROSILICATE GROUPS. CRYSTAL AND MOLECULAR STRUCTURE OF CATENA(-μ-HEXAFLUOROSILICATO)TETRAKIS(N-VINYLIMIDAZOLE)COBALT(II)

Autor: R. A. J. DRIESSEN, F. B. HULSBERGEN, W. J. VERMIN, J. REEDIJK

Publikováno v: Chemischer Informationsdienst. 13

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::592070fdc359e7d2c98b6833e3e2840e
https://doi.org/10.1002/chin.198252307

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Alkaloids of South African samples of Calpurnia aurea subsp. Sylvatica

Autor: J. L. van Eijk, C. Romers, A.J. de Kok, W. J. Vermin, M.H. Radema

Publikováno v: Phytochemistry. 18:2063-2064

Two new alkaloids, calpurmenine (12β,13α-dihydroxylupanine) and its 13α-pyrrolylcarboxylic acid ester have been isolated from a South African sample of Calpurnia aurea. The alkaloid 10,13-dihydroxylupanine, earlier found in Cadia purpurea but abse

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::82fcbb4e9bb3b959bd2a580394d7732d
https://doi.org/10.1016/s0031-9422(00)82751-x

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