SQUEEZE for treating severely disordered solvent molecules in the refinement of the otherwise ordered crystal structures of [Cd(C12H10N4)(C15H9O2)2(CH3OH)]·0.5H2O·CH3OH and [Cd(C12H10N4)1.5(C15H9O2)2]·CH3OH

In the refinement of the crystal structure of [Cd(C12H10N4)(C15H9O2)2(CH3OH)].0.5H2O.CH3OH, the lattice water molecule was not located by difference Fourier synthesis but was instead deduced by using SQUEEZE owing to severe disorder of the water molecule in the otherwise ordered crystal structure. ...

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Main Author: Seik Weng Ng
Format: Article
Language:English
Published: Society of Chemists and Technologists of Macedonia 2015-05-01
Series:Macedonian Journal of Chemistry and Chemical Engineering
Subjects:
Online Access:https://mjcce.org.mk/index.php/MJCCE/article/view/628
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author Seik Weng Ng
author_facet Seik Weng Ng
author_sort Seik Weng Ng
collection DOAJ
description In the refinement of the crystal structure of [Cd(C12H10N4)(C15H9O2)2(CH3OH)].0.5H2O.CH3OH, the lattice water molecule was not located by difference Fourier synthesis but was instead deduced by using SQUEEZE owing to severe disorder of the water molecule in the otherwise ordered crystal structure.  Similarly deduced were the two symmetry-independent methanol molecules in [Cd(C12H10N4)1.5(C15H9O2)2].CH3OH.  The first coordination polymer adopts a chain motif and the second a layer motif; for both, the N-heterocycle functions as a bridge to connect adjacent metal atoms.  The solvent molecules are presumed to reside in voids, which are themselves connected into channels.  The crystallographic program Crystal Explorer was used in the illustration of the channels.  Crystal data C44H37N4O6.5Cd: FW = 838.18, monoclinic, P21/n, a = 16.7871(4) Å, b = 26.5431(5) Å, c = 18.7034(5) Å, b = 111.915(3)°, V = 7731.7(3) Å3.  Crystal data for C49H38N6O5.5Cd: FW = 911.25, monoclinic, P21/c, a = 11.0586(3) Å, b = 23.5007(6) Å, c = 17.3454(5) Å, b = 105.626(3)°, V = 4341.2(2) Å3.
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spelling doaj.art-908eb69025194c3086ffcede3630f29a2022-12-21T19:48:10ZengSociety of Chemists and Technologists of MacedoniaMacedonian Journal of Chemistry and Chemical Engineering1857-55521857-56252015-05-01341576110.20450/mjcce.2015.628253SQUEEZE for treating severely disordered solvent molecules in the refinement of the otherwise ordered crystal structures of [Cd(C12H10N4)(C15H9O2)2(CH3OH)]·0.5H2O·CH3OH and [Cd(C12H10N4)1.5(C15H9O2)2]·CH3OHSeik Weng Ng0Department of Chemistry University of Malaya 50603 Kuala Lumpur and Chemistry Department, King Abdulaziz University, Jeddah, Saudi ArabiaIn the refinement of the crystal structure of [Cd(C12H10N4)(C15H9O2)2(CH3OH)].0.5H2O.CH3OH, the lattice water molecule was not located by difference Fourier synthesis but was instead deduced by using SQUEEZE owing to severe disorder of the water molecule in the otherwise ordered crystal structure.  Similarly deduced were the two symmetry-independent methanol molecules in [Cd(C12H10N4)1.5(C15H9O2)2].CH3OH.  The first coordination polymer adopts a chain motif and the second a layer motif; for both, the N-heterocycle functions as a bridge to connect adjacent metal atoms.  The solvent molecules are presumed to reside in voids, which are themselves connected into channels.  The crystallographic program Crystal Explorer was used in the illustration of the channels.  Crystal data C44H37N4O6.5Cd: FW = 838.18, monoclinic, P21/n, a = 16.7871(4) Å, b = 26.5431(5) Å, c = 18.7034(5) Å, b = 111.915(3)°, V = 7731.7(3) Å3.  Crystal data for C49H38N6O5.5Cd: FW = 911.25, monoclinic, P21/c, a = 11.0586(3) Å, b = 23.5007(6) Å, c = 17.3454(5) Å, b = 105.626(3)°, V = 4341.2(2) Å3.https://mjcce.org.mk/index.php/MJCCE/article/view/628solvent molecules, voids, squeeze, crystal explorer
spellingShingle Seik Weng Ng
SQUEEZE for treating severely disordered solvent molecules in the refinement of the otherwise ordered crystal structures of [Cd(C12H10N4)(C15H9O2)2(CH3OH)]·0.5H2O·CH3OH and [Cd(C12H10N4)1.5(C15H9O2)2]·CH3OH
Macedonian Journal of Chemistry and Chemical Engineering
solvent molecules, voids, squeeze, crystal explorer
title SQUEEZE for treating severely disordered solvent molecules in the refinement of the otherwise ordered crystal structures of [Cd(C12H10N4)(C15H9O2)2(CH3OH)]·0.5H2O·CH3OH and [Cd(C12H10N4)1.5(C15H9O2)2]·CH3OH
title_full SQUEEZE for treating severely disordered solvent molecules in the refinement of the otherwise ordered crystal structures of [Cd(C12H10N4)(C15H9O2)2(CH3OH)]·0.5H2O·CH3OH and [Cd(C12H10N4)1.5(C15H9O2)2]·CH3OH
title_fullStr SQUEEZE for treating severely disordered solvent molecules in the refinement of the otherwise ordered crystal structures of [Cd(C12H10N4)(C15H9O2)2(CH3OH)]·0.5H2O·CH3OH and [Cd(C12H10N4)1.5(C15H9O2)2]·CH3OH
title_full_unstemmed SQUEEZE for treating severely disordered solvent molecules in the refinement of the otherwise ordered crystal structures of [Cd(C12H10N4)(C15H9O2)2(CH3OH)]·0.5H2O·CH3OH and [Cd(C12H10N4)1.5(C15H9O2)2]·CH3OH
title_short SQUEEZE for treating severely disordered solvent molecules in the refinement of the otherwise ordered crystal structures of [Cd(C12H10N4)(C15H9O2)2(CH3OH)]·0.5H2O·CH3OH and [Cd(C12H10N4)1.5(C15H9O2)2]·CH3OH
title_sort squeeze for treating severely disordered solvent molecules in the refinement of the otherwise ordered crystal structures of cd c12h10n4 c15h9o2 2 ch3oh ·0 5h2o·ch3oh and cd c12h10n4 1 5 c15h9o2 2 ·ch3oh
topic solvent molecules, voids, squeeze, crystal explorer
url https://mjcce.org.mk/index.php/MJCCE/article/view/628
work_keys_str_mv AT seikwengng squeezefortreatingseverelydisorderedsolventmoleculesintherefinementoftheotherwiseorderedcrystalstructuresofcdc12h10n4c15h9o22ch3oh05h2och3ohandcdc12h10n415c15h9o22ch3oh