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Cd(Il)-ethylenediam...
Cd(Il)-ethylenediamine mono- and bimetallic complexes - Synthesis and characterization by Cd-113 NMR spectroscopy and single crystal X-ray diffraction
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Ma, G. B. (författare)
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- Fischer, Andreas (författare)
- KTH,Oorganisk kemi
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Nieuwendaal, R. (författare)
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Ramaswamy, K. (författare)
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Hayes, S. E. (författare)
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(creator_code:org_t)
- Elsevier BV, 2005
- 2005
- Engelska.
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Ingår i: Inorganica Chimica Acta. - : Elsevier BV. - 0020-1693 .- 1873-3255. ; 358:11, s. 3165-3173
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Formation of three Cd(II)-ethylenediamine (en) complexes ([Cd(en)(n)](2+), n = 1-3) in aqueous solution and in DMSO solvent has been established by means of Cd-113 NMR spectroscopy. It is clearly shown that Cd(II)-en complexes form primarily in basic solutions. A correlation between the Cd-113 NMR chemical shifts and the ethylenediamine (en) coordination number has been observed and discussed. Two single crystals with the composition [Cd-2(en)(5)](ClO4)(4) (1) and [Cd(en)(3)](ClO4)(2) (2) were prepared from aqueous solution, and their structures were determined by single crystal X-ray diffraction. Cd(II) ions are coordinated by six atoms in both compounds, I and 2: via five N-donor atoms and one O-donor atom forming a bimetallic complex 1, and via six N-donor atoms forming a distorted octahedral monometallic complex 2. Raman spectra of complexes 1 and 2 also provide additional evidence that the cis-form of the bridging en is present in complex 1.
Nyckelord
- cadmium
- ethylenediamine complexes
- Cd-113 NMR
- crystal structure
- Raman spectra
- supercooled aqueous-solutions
- nuclear magnetic-resonance
- dimethyl-sulfoxide
- chemical-shift
- cde e
- ligands
- ethylenediamine
- equilibrium
- cadmium(ii)
- nanorods
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- art (ämneskategori)
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