Magnetic properties of the 3d4-ions. Magnetic susceptibility and electronic spectrum of the sodium bis(tartrato)bisaquomangan(III) nonahydrate

✍ Scribed by J. Máthé; C.J. Schinkel; W.A. Van Amstel

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 320 KB
• Volume: 33
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(75)85766-6

✦ Synopsis

The paramqnetic susceptibility iorrnu!a ofd4-ions are derived using second-order perturbation calculations. The magnetic moments oE mametically diluted d4compounds YZ close to the spin-only value if T > 25 K. At lower tcmpcratures the mqnetic moment decreads as the temperature becomes lower. The magnetic susceptibility of Nas[Mn(C_Ht06)1(H2O)Z]-9HZO ha: been measured down to 1.30 K. From the magetic susceptibility measurements the zero-field splitting constant, ~1 and61 have been obtained (D = -3.5 cm-' , g/l = 1.963, gl = 1.993). The electronic spectrum at 77 K has been recorded and interpreted in terms of a crysta! field of&h symmetry.