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DC Field | Value | Language |
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dc.contributor.author | Venkataraman, Sujatha | - |
dc.contributor.author | Varghese, Babu | - |
dc.contributor.author | Sadashiva, B.K. | - |
dc.date.accessioned | 2007-02-08T08:19:47Z | - |
dc.date.available | 2007-02-08T08:19:47Z | - |
dc.date.issued | 2001 | - |
dc.identifier.citation | Molecular Crystals and Liquid Crystals, 2001, Vol.357, p199-219 | en |
dc.identifier.issn | 1058-725X | - |
dc.identifier.uri | http://hdl.handle.net/2289/2096 | - |
dc.description | Restricted Access | en |
dc.description.abstract | We report here the synthesis, crystal structure and Electron Paramagnetic Resonance (EPR) studies of the compound bis[l,3-di(p-n-octy1phenyI)propane- 1,3-dionato]oxovanadium(IV) abbreviated as C8(VO)C8. The molecular crystalline properties of this compound are dealt with in this paper. The compound crystallizes in the triclinic, Pi space group with a = 11.956(4), b = 15.802(5), c = 16.293(4) A, α = 103.22(2), β = 110.61(2), and γ = 90.88(3); 222. The two vanadium centers are crystallographically equivalent and the shortest V-V bond distance is 9.5803 A. The hyperfine splitting pattern in single crystal EPR spectrum clearly shows the presence of weak pair-wise magnetic interaction. The splitting originates in a combination of hyperfine and fine structure caused by dipolar and exchange coupling of nearest-neighboring molecules related by inversion through the unit cell origin. The sign and the value of the exchange coupling constant, J = + 30 G, was determined by simulation of EPR spectra. The principal g and A values obtained are gl = 1.934 and gl = 1.982, A1 = 192 G and Al = 69 G. | en |
dc.format.extent | 588401 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | en |
dc.publisher | Gorden and Breach Science Publishers. | en |
dc.rights | 2001 OPA (Overseas Publishers Association) N.V. | en |
dc.subject | Exchange coupling | en |
dc.subject | Dipolar interaction | en |
dc.subject | Hyperfine splitting | en |
dc.title | Crystal structure and EPR studies of Bis[1,3-Di(p-n-Octylphenyl) Propane-1,3-Dionato]Oxovanadium(IV) | en |
dc.type | Article | en |
Appears in Collections: | Research Papers (SCM) |
Files in This Item:
File | Description | Size | Format | |
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2001 MCLC V 357 p199.pdf Restricted Access | Restricted Access | 574.61 kB | Adobe PDF | View/Open Request a copy |
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