Published July 1997 | Version v1
Journal article Metadata-only

Crystal and molecular structure of N-vinylcaprolactam

Creators

  • 1. Karpov Research Institute of Physical Chemistry, Russian State Scientific Center, ul. Vorontsovo pole 10, Moscow, 103064 (Russian Federation)
  • 2. Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 117333 (Russian Federation)

Description

The x-ray crystal and molecular structure of N-vinylcaprolactam C8H13NO is determined. The compound is the initial monomer for a water-soluble polymer with a low critical temperature of dissolving (36-37 deg. C). The crystals are triclinic; a=8.170(4), b=8.094(4), and c=6.799(4) A; α=99.92(1) deg., β=88.89(1) deg., and γ=115.30(1) deg.; sp. gr. P1-bar; CuKα radiation; R=0.062 for 1332 reflections with F>2σ(F). The molecule exhibits a chair conformation. The atoms of the cis amide and the vinyl groups are approximately coplanar. The charge distribution indicates the increased reactivity of the thermal C(9) atom, which promotes the polimerization reaction

Additional details

Identifiers

URL
https://www.pleiades.online/contents/cryst/cryst4_97v42cont.htm;

Publishing Information

Journal Title
Crystallography Reports
Journal Volume
42
Journal Issue
4
Journal Page Range
p. 626-630
ISSN
1063-7745
CODEN
CYSTE3

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
35073797
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Translation
Descriptors DEI
CHARGE DISTRIBUTION; CRITICAL TEMPERATURE; CRYSTALLOGRAPHY; CRYSTALS; LACTAMS; LATTICE PARAMETERS; MOLECULAR STRUCTURE; MONOMERS; POLYMERS; SYMMETRY; TEMPERATURE RANGE 0273-0400 K; TRICLINIC LATTICES; X-RAY DIFFRACTION
Descriptors DEC
AMIDES; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; PHYSICAL PROPERTIES; SCATTERING; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE

Optional Information

Notes
Translated from Kristallografiya, ISSN 0023-4761, 42, 685-689 (July-August 1997); (c) 1997 MAIK/Interperiodika