Low-temperature magnetic properties of three vanadium(III) and manganese(III) β-diketonate complexes
Author(s)
GREGSON, AK
DODDRELL, DM
HEALY, PC
Griffith University Author(s)
Year published
1978
Metadata
Show full item recordAbstract
The low-temperature (2-100 K) polycrystalline magnetic properties of V ( a ~ a c )M~ ,n ( a ~ a c )a~n,d Mn(trop)3 are reported [Hacac = 2,4-pentanedione and Htrop = tropolone]. For V(acac), the zero-field splitting (D) is 7.7 cm-', gI1 = 1.96 and g , = 1.78, all compatible with the reinterpreted optical spectrum. The magnetic data for Mn ( a ~ a c h) a~v e been interpreted with D = 3.1 cm-' and g = 2.00 and are also compatible with ligand field calculations based on the reinterpreted optical spectrum. In Mn(trop), there appears to be a very weak intermolecular coupling through the tropolonate ligands, the magnetic parameters ...
View more >The low-temperature (2-100 K) polycrystalline magnetic properties of V ( a ~ a c )M~ ,n ( a ~ a c )a~n,d Mn(trop)3 are reported [Hacac = 2,4-pentanedione and Htrop = tropolone]. For V(acac), the zero-field splitting (D) is 7.7 cm-', gI1 = 1.96 and g , = 1.78, all compatible with the reinterpreted optical spectrum. The magnetic data for Mn ( a ~ a c h) a~v e been interpreted with D = 3.1 cm-' and g = 2.00 and are also compatible with ligand field calculations based on the reinterpreted optical spectrum. In Mn(trop), there appears to be a very weak intermolecular coupling through the tropolonate ligands, the magnetic parameters being D = -2.6 cm-], g = 2.00, and J = -0.18 cm-l.
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View more >The low-temperature (2-100 K) polycrystalline magnetic properties of V ( a ~ a c )M~ ,n ( a ~ a c )a~n,d Mn(trop)3 are reported [Hacac = 2,4-pentanedione and Htrop = tropolone]. For V(acac), the zero-field splitting (D) is 7.7 cm-', gI1 = 1.96 and g , = 1.78, all compatible with the reinterpreted optical spectrum. The magnetic data for Mn ( a ~ a c h) a~v e been interpreted with D = 3.1 cm-' and g = 2.00 and are also compatible with ligand field calculations based on the reinterpreted optical spectrum. In Mn(trop), there appears to be a very weak intermolecular coupling through the tropolonate ligands, the magnetic parameters being D = -2.6 cm-], g = 2.00, and J = -0.18 cm-l.
View less >
Journal Title
Inorganic Chemistry
Volume
17
Issue
5
Publisher URI
Copyright Statement
© 1978 American Chemical Society. Self-archiving of the author-manuscript version is not yet supported by this publisher. The contents of this journal can be freely accessed online via the ACS web page 12 months after publication. Use hypertext link above to access the ACS website.
Subject
Inorganic chemistry
Physical chemistry
Other chemical sciences