Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Phyllis D. Strong"'
Autor:
Zdzisław Gałdecki, Pawel Grochulski, Zdzislaw Wawrzak, Ewa Gałdecka, Phyllis D. Strong, William L. Duax
Publikováno v:
Journal of Chemical Crystallography. 26:497-502
The structures of the title compounds were solved by direct methods and refined by anisotropic full-matrix least-squares methods. 4,11-Pregnadiene-3,20-dione, C21H28O2(1) crystallizes in the monoclinic space groupP21 (Z=2). The unit cell parametersa,
Publikováno v:
ChemInform. 22
C20H24O4, Mr = 328.41, orthorhombic, P2(1)2(1)2(1), a = 11.688 (3), b = 15.377 (5), c = 9.466 (2) A, V = 1701 (1) A3, Z = 4, Dx = 1.282 g cm-3, lambda (Mo K alpha) = 0.71073 A, mu = 0.823 cm-1, F(000) = 704, T = 298 K, R = 0.063 for 1921 reflections
Autor:
Zdzislaw Wawrzak, Jane F. Griffin, Phyllis D. Strong, William L. Duax, Zdzisław Gałdecki, Pawel Grochulski
Publikováno v:
Journal of Crystallographic and Spectroscopic Research. 22:65-69
The X-ray structure of 6-methyl-3,20-dioxo-4,6-pregnadien-17α-yl acetate is reported. The crystals are monoclinic, space groupP21,Z=4,a=28.955(7),b=6.597(2),c=11.064(3) A,/gb=90.80(2) °. The two crystallographically independent molecules have very
Autor:
Phyllis D. Strong, William L. Duax, Zdzislaw Wawrzak, Zdzisław Gałdecki, D. N. Kirk, Pawel Grochulski
Publikováno v:
Journal of Crystallographic and Spectroscopic Research. 21:649-652
The title compound crystallizes in space groupP212121 with lattice constantsa=16.253(3),b=17.107(3), andc=8.486(2) A. The A ring has 1α,2β-half-chair conformation. The calculated steric energy of a 6α-methyl-17α-ester progesterone molecule is low
Publikováno v:
Journal of Computer-Aided Molecular Design. 5:95-106
Crystal structures of the 1,4-dihydropyridine (1,4-DHP) calcium channel activators Bay K 8643 [methyl 1,4-dihydro-2,6-dimethyl-3-nitro-4-(3-nitrophenyl)-pyridine-5-carboxy lat e], Bay O 8495 [methyl 1,4-dihydro-2,6-dimethyl-3-nitro-4-(3-trifluorometh
Publikováno v:
Journal of Crystallographic and Spectroscopic Research. 20:441-445
The crystal and molecular structure of 21-fluoro-4,9(ll)-pregnadiene-3,20-dion-17a-yl acetate has been determined by X-ray diffraction methods;P212121,a=15.827(4),b=16.912(4),c=7.513(2) A,Z=4;R=0.062, (R w =0.065) for 2028 unique observed reflections
Publikováno v:
Journal of Computer-Aided Molecular Design. 4:215-230
Our analysis of the solid state conformations of nifedipine [dimethyl 1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-3,5-pyridinecarboxylate ] and its 1,4-dihydropyridine (1,4-DHP) analogues produced a cartoon description of the important interactions be
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 47:689-691
C46H62O6, Mr = 711.0, orthorhombic, P2(1)2(1)2(1), a = 20.187 (3), b = 22.004 (3), c = 9.180 (1) A, V = 4078 (2) A3, Z = 4, Dx = 1.16 g cm-3, lambda (Mo K alpha) = 0.71069 A, mu = 0.7 cm-1, F(000) = 1544, T = 295 K, R = 0.096 for 3894 unique observed
Publikováno v:
Acta crystallographica. Section C, Crystal structure communications. 47
C20H24O4, Mr = 328.41, orthorhombic, P2(1)2(1)2(1), a = 11.688 (3), b = 15.377 (5), c = 9.466 (2) A, V = 1701 (1) A3, Z = 4, Dx = 1.282 g cm-3, lambda (Mo K alpha) = 0.71073 A, mu = 0.823 cm-1, F(000) = 704, T = 298 K, R = 0.063 for 1921 reflections
Publikováno v:
Acta crystallographica. Section C, Crystal structure communications. 46
C19H22O3, Mr = 298.39, orthorhombic, P2(1)2(1)2(1), a = 11.332 (6), b = 14.596 (7), c = 9.567 (4) A, V = 1582.6 (5) A3, Z = 4, D chi = 1.252 Mg m-3, lambda(Mo K alpha) = 0.71073 A, mu = 0.0778 mm-1, F(000) = 640, T = 273 K, R = 0.067 for 1762 unique