𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Crystal structure of the 1:1 complex of heptakis(2,3,6-tri-O-methyl)cyclomaltoheptaose (permethylated β-cyclodextrin) with ethyl laurate

✍ Scribed by Dimitri Mentzafos; Irene M. Mavridis; Henk Schenk

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
714 KB
Volume
253
Category
Article
ISSN
0008-6215

No coin nor oath required. For personal study only.

✦ Synopsis

The crystal of the 1: 1 complex of ethyl laurate with heptakis(2,3,6-tri-0-methyl)cyclomaltoheptaose (ThI-@CD, permethyIated &cyclodextrin) is orthorombic, P&2,2,, with a = 14.796(Z), b m 22.444(6), c = 27.720@) A; V = 9~5(4) k3; and Z = 4. The macrocycles have a distorted ~nfo~ation due to the absence of intramolecular hydrogen bonds and are stacked in a head-to-tail mode to form channels parallel to the b axis of the crystal. In the interior of the channel, the guest molecules are acconunodated in extended conformation. fro water molecules have been located near the secondary rim of each TM-@CD molecule, forming hydrogen bonds with the oxygen atoms of the' guest.

📜 SIMILAR VOLUMES

Molecular and crystal structure of methy
Molecular and crystal structure of methyl 2,3,4-tri-O-acetyl-β-d-xylopyranosyl-(1 → 2)-3-O-benzyl-4,6-O-benzylidene-α-d-mannopyranoside
✍ Osamu Kanie; Tadahiro Takeda; Keiichiro Hatano 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 306 KB

Acylated ]3-o-xylopyranose derivatives are known to exist as a mixture of the 1C 4 and 4C I conformers in rapid equilibrium in solution [3]. Several conformations have also been reported for/3-D-xylopyranose derivatives in the solid state [4]. In the course of our study to investigate the functions

Chemical and Structural Properties of th
Chemical and Structural Properties of the Inclusion Complex of Euplotin C with Heptakis(2,6-di-O-methyl)-β-cyclodextrin through NMR Spectroscopy, Electrospray Mass Spectrometry and Molecular Mechanics Investigations
✍ Graziano Guella; Emanuela Callone; Ines Mancini; Gloria Uccello-Barretta; Federi 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 278 KB 👁 1 views

## Abstract The inclusion complex of heptakis(2,6‐di‐__O__‐methyl)‐β‐cyclodextrin (DIMEB) with euplotin C (EC), a cytotoxic metabolite isolated from the protistan strains composing the marine ciliate __Euplotes crassus,__ has been investigated by ^1^H NMR techniques, electrospray ionization mass sp

The crystal structure and conformational
The crystal structure and conformational analysis of substituted 2,7-dioxabicyclo[4,1,0[heptanes: 1,2-anhydro-3,4,6-tri-O-benzyl-β-d-talopyranose
✍ Genpei Li; Lihong Jiang; Fanzuo Kong; Jianhui Liu 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 437 KB

The title compound, C28H27O5, is triclinic, space group P1 with unit cell dimensions a = 12.763(2), b = 11.130(2), c = 4.764(3) A, alpha = 73.78(3), beta = 82.89(3), gamma = 62.16(1) degrees, V = 574.8(4) A3, and Z = 1. The pyranose ring has an 4H5 conformation with some flattening at C-4. Molecular

Enantioseparations of hydrobenzoin and s
Enantioseparations of hydrobenzoin and structurally related compounds in capillary zone electrophoresis using heptakis(2,3-dihydroxy-6-O-sulfo)-β-cyclodextrin as chiral selector and enantiomer migration reversal of hydrobenzoin with a dual cyclodextrin system in the presence of borate complexation
✍ Ching-Erh Lin; Sheng-Li Lin; I-Ju Fang; Wei-Ssu Liao; Chia-Chong Chen 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 145 KB 👁 2 views