A consideration of the hydrogen bonding schemes of the surfactant N-tetradecyl-(2,4-dihydroxy)-butanoic acid amide and some related amphiphilic compounds
Abstract
The crystal and molecular structure of N-tetradecyl-(2,4-dihydroxy)-butanoic acid amide (C18H37NO3) has been determined by direct methods. The compound crystallizes in the monoclinic space group C2/c with a = 96.27(3), b = 4.8135(12) Å, c = 8.701(5) Å3, β = 91.84(4)°, V = 4030(3) Å3, Z = 8, Dx = 1.04 Mg · m−3.
The molecules are packed in the bilayer arrangement as usually observed in amphiphiles. The amide bond and the 2-OH group form intralayer oriented hydrogen bonds of Etter graph sets C(4) and C(5), respectively. In contrast to these, the terminal hydroxyl group which exhibits a two-fold disordered hydrogen atom forms hydrogen bonds with centrosymmetrically related counterparts in the neighbouring bilayer (Etter graph set C(2)). Identical hydrogen bond graph sets were also found in the crystal structures of some further compounds chemically related with the title compound.
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Artikel in diesem Heft
- A Monte Carlo method for indexing
- Kinetic and microstructural studies of the crystallisation of coesite from quartz at high pressure
- Studies on peroxomolybdates XXI. Crystal structure of the ammonium peroxooctamolybdate(VI) (NH4)4[Mo8O24+x(O2)2−x(H2O)2] · 4H2O (x = 0.8)1
- The crystal structure of gordaite NaZn4(SO4)(OH)6Cl · 6H2O
- Transmission electron microscopy evidence of a new tetragonal tungsten bronze superstructure
- A neutron powder investigation of the high-temperature structure and phase transition in stoichiometric LiNbO3
- Syntheses and crystal structures of Co3(C2O4)(SeO3)2 and Zn(C2O4) · 2H2O
- Lithium hydrogenselenite, LiHSeO3: Structure refinement using multiple-wavelength synchrotron radiation data
- Crystal structures of four Cs3MI5 (M = Mn, Cd, Hg) phases and structural relationship among Cs3MI5 compounds
- The crystal structure of polymeric magnesium bis(p-nitrophenolate) dihydrate: [Mg(O2NC6H4O)2(OH2)2]∞
- Crystal structures of neutral trigonal bipyramidal [NiCl2(PMePh2)(PNMe2)] · ½ CH2Cl2 and cationic square planar [NiCl(PMePh2)(PNMe2)][PF6] complexes
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- X-ray crystal structure and computer modelling of 1,2,3-tris(4-quinolyl)cyclopropane
