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Three closely related (2E,2'E)-3,3'-(1,4-phenyl-ene)bis-[1-(meth-oxy-phen-yl)prop-2-en-1-ones]: supra-molecular assemblies in one dimension mediated by hydrogen bonding and C-H⋯π inter-actions

Sim A 1 , Chidan Kumar CS 2 , Kwong HC 3 , Then LY 1 , Win YF 4 , Quah CK 1 Show all authors , Naveen S 5 , Chandraju S 6 , Lokanath NK 7 , Warad I 8

Affiliations 

  • 1 X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
  • 2 Department of Engineering Chemistry, Vidya Vikas Institute of Engineering &, Technology, Visvesvaraya Technological University, Alanahalli, Mysuru 570 028, Karnataka, India
  • 3 School of Chemical Sciences, Universiti Sains Malaysia, Penang 11800 USM, Malaysia
  • 4 Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul, Rahman, Perak Campus, Jalan Universiti, Bandar Barat, Perak, Malaysia
  • 5 Institution of Excellence, University of Mysore, Manasagangotri, Mysuru 570 006, India
  • 6 Department of Sugar Technology & Chemistry, University of Mysore, Sir M. Visvesvaraya PG Centre, Tubinakere, Mandya 571 402, India
  • 7 Department of Studies in Physics, University of Mysore, Manasagangotri, Mysuru, 570 006, India
  • 8 Department of Chemistry, Science College, An-Najah National University, PO Box 7, Nablus, West Bank, Palestinian Territories
Acta Crystallogr E Crystallogr Commun, 2017 Jun 01;73(Pt 6):896-900.
PMID: 28638654 DOI: 10.1107/S2056989017007460

Abstract

In the title compounds, (2E,2'E)-3,3'-(1,4-phenyl-ene)bis-[1-(2-meth-oxy-phen-yl)prop-2-en-1-one], C26H22O4 (I), (2E,2'E)-3,3'-(1,4-phenyl-ene)bis-[1-(3-meth-oxy-phen-yl)prop-2-en-1-one], C26H22O4 (II) and (2E,2'E)-3,3'-(1,4-phenyl-ene)bis-[1-(3,4-di-meth-oxy-phen-yl)prop-2-en-1-one], C28H26O6 (III), the asymmetric unit consists of a half-mol-ecule, completed by crystallographic inversion symmetry. The dihedral angles between the central and terminal benzene rings are 56.98 (8), 7.74 (7) and 7.73 (7)° for (I), (II) and (III), respectively. In the crystal of (I), mol-ecules are linked by pairs of C-H⋯π inter-actions into chains running parallel to [101]. The packing for (II) and (III), features inversion dimers linked by pairs of C-H⋯O hydrogen bonds, forming R2(2)(16) and R2(2)(14) ring motifs, respectively, as parts of [201] and [101] chains, respectively.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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