Compound

1

2 Bands

3 (nm)

d-d

µ_eff BM

Ligand

202

220

345

-

Cu(II)

234

309

499, 614

2.54

Ni(II)

324

525, 880

0.00

Co(II)

224

325

765, 536

1.96

VO(IV)

236

376

450, 628 and 847

1.75