Tin(IV) and organotin(IV) derivatives of novel β-diketones I. Dialkyltin(IV) complexes of 1-phenyl-3-methyl-4-R′(CO)-pyrazol-5-one (R′ = CCl3, OCH3, OC2H5, OiC3H7, OC7H7). Crystal and molecular structure of trans-dimethylbis]1-phenyl-3-methyl- 4-i-propoxycarbonyl-pyrazolon-5-ato]tin(IV) | Publicación