Structural and catalytic properties of bis(guanidine)copper(I) halides

Inorganic Chemistry

Volumn 42, Issue 10, 2003, Pages 3154-3156

  Oakley, Sarah H ^a   Coles, Martyn P ^a   Hitchcock, Peter B ^a  

^a UNIVERSITY OF SUSSEX   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

AMIDINE; BIS(GUANIDINE)COPPER BROMIDE; BIS(GUANIDINE)COPPER CHLORIDE; BIS(GUANIDINE)COPPER IODIDE; COPPER COMPLEX; GUANIDINE DERIVATIVE; HALIDE; LIGAND; METHACRYLIC ACID METHYL ESTER; UNCLASSIFIED DRUG;

ARTICLE; CATALYSIS; CHEMICAL STRUCTURE; COMPLEX FORMATION; HYDROGEN BOND; POLYMERIZATION; PROTON NUCLEAR MAGNETIC RESONANCE;

EID: 0038630707     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic034213b     Document Type: Article

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10. Oakley, S. H.; Coles, M. P.; Hitchcock, P. B. Manuscript in preparation.
11. int = 0.041], R1 [for 2620 reflections with I > 2σ
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14. int = 0.062], R1 [for 11409 reflections with I > 2σ] = 0.053, wR2 (all data) = 0.121.
15. All of the hppH ligands were refined with isotropic thermal parameters and with 1,2 and 1,3 distances constrained to be equal in all ligands (using the SAME instruction in SHELXL).
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17. 1H NMR of the noncoordinated ligand also shows only 3 resonances for the methylene groups. Low temperature (196 K) spectra did not resolve the groups into the six resonances expected in a localized structure, suggesting a rapid process by which the H-atom of the NH group is rapidly moving between the two nitrogen atoms (in agreement with the solid-state structure) or is present in a delocalized (symmetric) situation.
18. c/Δv)] was used to calculate activation energies. The average value for the three different methylene coalescence temperatures is quoted for comparative purposes.
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22. Experimental conditions employed were from a previously published experimental procedure: Haddleton, D. M.; Duncalf, D. J.; Kukulj, D.; Crossman, M. C.; Jackson, S. G.; Bon, S. A. F.; Clark, A. J.; Shooter, A. J. Eur. J. Inorg. Chem. 1998, 1791.