TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preparation (Claimed): Preparation of (I): Preparation of (I) comprises reacting corresponding free ligands with metal alcoholate compounds of formula (M(OR1)n), with metal ketoketonate compounds of formula (aa) or with metal halide compounds of formula (M(Hal)n).Either R1 = linear 1-40C-alkyl or -(thio)alkoxy, linear 2-40C-alkenyl or -alkynyl or branched or cyclic 3-40C-alkyl, -alkenyl, -alkynyl, -(thio)alkoxy or -alkylakoxy (all optionally substituted with one or more R2, where one or more non-adjacent CH2-groups are optionally replaced by R2C=CR2, CC, Si(R2)2, Ge(R2)2, Sn(R2)2, C=O, C=S, C=Se, C=NR2, P(=O)(R2), SO, SO2, NR2, O, S or CONR2, and one or more H-atoms are optionally replaced by D, F, Cl, Br, I, CN or NO2), or 5-60 membered (hetero)aromatic ring system or 5-60 membered-(hetero)aryloxy, -arylalkoxy or -alkylaryloxy or 10-40 membered-di(hetero)arylamino and/or -arylheteroarylamino (all optionally substituted by one or more R2), H, D, F, Cl, Br, I, N(R2)2, CN, NO2, Si(R2)3, B(OR2)2, C(=O)R2, P(=O)(R2)2, S(=O)R2, S(=O)2R2 or OSO2R2; or two or more R1 together = mono- or polycyclic, aliphatic, aromatic and/or benzofused ring system; andHal = F, Cl, Br or I. ACTIVITY - Dermatological; Antipsoriatic; Keratolytic; Antiulcer; Vulnerary; Antiseborrheic; Hepatotropic; Cytostatic; Antiarthritic; Antirheumatic; Analgesic; Neuroprotective; Antiinflammatory; Osteopathic; Antiallergic; Virucide; Hypnotic.    MECHANISM OF ACTION - None given.    SPECIFIC COMPOUNDS - 150 compounds (I) are disclosed e.g. iridium-phosphine complexes of formulae (Ia)-(Ie).    EXAMPLE - An iridium complex of formula (bb) (4.8 mmole) and potassium acetate (5.3 mmole) were suspended in degassed dimethyl acetamide (100 ml). Then the suspension was added with palladium acetate (0.05 mmole) and diphenyl phosphine (14.4 mmole). The reaction mixture was heated for 4 days under reflux. After cooling, the reaction solution was poured to water (175 ml). Then methylene chloride (200 ml) was added and the organic phase was separated, washed three times with water (75 ml) and then evaporated to dryness. The residue was washed with ethanol and recrystallized from toluene and dried at reduced pressure to obtain Iridium-phosphine complexes (Ia) (5.3 g (3.9 mmole), 80.7% of the theory).