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  On the Chiral Z′ = 2 Crystal Structure of [Cu2(H2valdien)2](NO3)2 [H2valdien = N1,N3-bis(3-methoxysalicylidene)diethylenetriamine]

Noor, S., Goddard, R., Kumar, S., Ahmad, N., Sabir, S., Mitra, P., et al. (2018). On the Chiral Z′ = 2 Crystal Structure of [Cu2(H2valdien)2](NO3)2 [H2valdien = N1,N3-bis(3-methoxysalicylidene)diethylenetriamine]. Journal of Chemical Crystallography, 48(4), 164-169. doi:10.1007/s10870-018-0724-4.

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 Creators:
Noor, Shabana1, Author
Goddard, Richard2, Author              
Kumar, Sarvendra3, Author
Ahmad, Nafees1, Author
Sabir, Suhail1, Author
Mitra, Partha4, Author
Seidel, Rüdiger W.2, Author              
Affiliations:
1Department of Chemistry, Aligarh Muslim University, Aligarh, India, ou_persistent22              
2Service Department Lehmann (EMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445625              
3Institute of Functional Nano & Soft Materials, Soochow University, Suzhou, People’s Republic of China, ou_persistent22              
4Indian Association for Cultivation of Science, Kolkata, India, ou_persistent22              

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Free keywords: Copper; Schiff base; π⋯π stacking; Hydrogen bonding; Pseudosymmetry; crystal structure
 Abstract: The crystal and molecular structure of [Cu2(H2valdien)2](NO3)2 (1), whereby H2valdien is the known Schiff base ligand N1,N3-bis(3-methoxysalicylidene)diethylenetriamine, is reported. In 1, two H2valdien ligands join two CuII ions in a chelate–spacer–chelate mode, in which the protonated aliphatic secondary amine moieties represent the spacers, to form a double helix. Both CuII ions in the homodinuclear cationic complex exhibit similar distorted square-planar N2O2 coordination spheres. The axially chiral molecular structure of the [Cu2(H2valdien)2]2+ complex features intramolecular π···π stacking and N–H⋯O hydrogen bonds in the crystal. Compound 1 crystallizes in the Sohncke space group P21, with a = 14.165(3), b = 13.7755(13), c = 21.1185(4) Å, β = 102.199(4)°, and with two enantiomeric molecules in the asymmetric unit (Z′ = 2). The two crystallographically unique [Cu2(H2valdien)2]2+ enantiomers are related by pseudo inversion symmetry.

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Language(s): eng - English
 Dates: 2018-04-242018-08-012018-08-092018-12-01
 Publication Status: Published in print
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1007/s10870-018-0724-4
 Degree: -

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Title: Journal of Chemical Crystallography
  Other : J. Chem. Crystallogr.
Source Genre: Journal
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Publ. Info: New York : Springer Science+Business Media
Pages: - Volume / Issue: 48 (4) Sequence Number: - Start / End Page: 164 - 169 Identifier: ISSN: 1074-1542
CoNE: https://pure.mpg.de/cone/journals/resource/954925604775