N-(n-Octyl)-6-deoxy-D-gluconamide crystallizes in the orthorhombic space group P212121, with a = 5.4524(5), b = 16.662(3), and c = 36.897(5) ,~. The structure was determined by X-ray diffraction and refined to R = 9.2%. The asymmetric crystal unit contains two molecules (A,B) with significantly diff
Molecular and crystal structure of the bola-amphiphile N-[8-(d-gluconamido)octyl]-d-gluconamide
✍ Scribed by Anke Müller-Fahrnow; Wolfram Saenger; Detlef Fritsch; Peter Schnieder; Jürgen-Hinrich Fuhrhop
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 619 KB
- Volume
- 242
- Category
- Article
- ISSN
- 0008-6215
No coin nor oath required. For personal study only.
✦ Synopsis
The crystal structure of the title compound [5; space group P2,; a = 8.375(5). b = 51.52(2), c = 5.647(3) A; p = 89.64( 4)"] was determined by X-ray diffraction methods and refined to R = 0.107. There are two molecules in the asymmetric unit, which adopt nearly identical conformations.
Each molecule has two parts that differ only in the torsion angle N-C-7-C-8-C-9, which can be synclinal (-64") or anti (168"). The molecules are arranged in sheets and the packing is stabilised by strong intra-and inter-molecular hydrogen bonds, some of which form a homodromic arrangement.
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The crystal structure of N-(n-octyl)-D-gluconamide (space group P2t, a = 5.252(1), b = 32.426(9), c = 4.805(1)~, # = 94.96(5) °) was determined by X-ray diffraction methods and refined to R = 0.046. The molecules are V-shaped and occur in an all-trans conformation for both the aliphatic and D-glucos
N-n-Undecyl-D-gluconamide, C17H35O6, crystallizes in space group P1, with one molecule in a unit cell a = 5.2267(6), b = 19.628(9), c = 4.7810(4) A, alpha = 93.23(2), beta = 95.60(1), gamma = 89.58(2) degrees, V = 487.35 A3, Dx = 1.19 g.cm-3. The crystal lattice is isostructural with N-n-heptyl-D-gl
The crystal structure of N-(l-octyl)-o-talonamide [space group P2,2,21, a = 914.0(2), b = 581.4(l), c =6257(l) pm] shows two independent molecules in the asymmetric unit. The oligomethylene chains of both molecules are extended. The talonic acid moieties have a gauche-bend along C-l-C-2-C-3-C-4 ther
The crystal structure of N-(1-hexadecyl)-D-gluconamide [a = 4.8072(6) A, b = 46.771(5) A, c = 5.2885(7) ,~, /3 = 94.37(1)°; monoclinic P21, Z = 2] displays the same molecular conformation and the same monolayer packing-arrangement as its lower homologues described previously. This is at seeming vari
The X-ray crystal structure of N-trideca-5,7-diyne-D-gluconamide was determined at 295, 100 and 20 K (space group PI, a=4.811(1)/4.775(4)/4.774(3), b=5.160(1)/5.098(3)/5.087(2), c=21.820(5)/21.54(1)/21.458(9) .~,, u= 92.44(2)/92.91(4)/93.02(4), /~= 107.76(2)/109.20(6)/109.57(5), ),=96.74(2)/96.81(5)