Triply bridged binuclear thiolate complexes of oxomolybdenum(V). Synthesis of [Mo2O2(SR)6Z]- (Z = OR', SR', NR'2) and crystal structures of (Et4N)[Mo2O2(SCH2CH2O)2Cl3], (Et4N)[Mo2O2(SCH2CH2O)3Cl], and (Pr3NH)[Mo2O2(SCH2CH2O)3(SCH2CH2OH)]

Di- and tri(tertiary phosphine) complexes of palladium(I)

“…Similar agreement was found for each of the other features in the spectrum. As expected the trans Pb-Pc coupling is large (330 Hz) while the cis P-P couplings, the three-bond couplings, are much smaller (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12) Hz). The magnitudes of the cis P-P couplings are consistent with the cis P-P coupling found for [Pd2(diphosphine)2(CNCH3)2]2+.…”

Electronic properties of thiolate compounds of oxomolybdenum(V) and their tungsten and selenium analogs. Effects of oxygen-17, molybdenum-98, and molybdenum-95 isotope substitution upon ESR spectra

“…15 (iii) The substitution of Se for S or of Mo for W also displaces the band to lower energy (see Figure 2) and the trend is in qualitative agreement with Jorgensen's theory of charge-transfer spectra. 16 This approach utilizes optical electronegativities Xopt (14) (15) Lever, A. B. P. "Inorganic Electronic Spectroscopy"; Elsevier: Am- to predict that energy differences of the first allowed band should be given by AEC1 (cm'1) = 30000|Xopl(S) The absence of these intense absorptions in the spin-paired binuclear analogues [M202(XR)6(0Me)]" (Table II)6 suggests that the singly occupied HOMO b2*(dx>, Mo-X(x*)) is the metal-based orbital involved.…”

Triply bridged thiolate complexes of oxotungstate(V): structures of tetraphenylphosphonium μ-chloro-bis(μ-phenylthiolato)-bis[dichlorooxotungstate(V)] (I), [Ph4P][Cl2OW(μ-Cl)(μ-SC6H5)2WOCl2], and tetraphenylarsonium μ-chloro-bis(μ-p-tolylthiolato)-bis[dichlorooxotungstate(V)] (II), [Ph4As][Cl2OW(μ-Cl){μ-S(p-C6H4CH3)}2WOCl2]

“…The chemistry of oxomolybdenum(V) has been extensively explored, yielding a wide variety of well characterized structural units (see, for example : Stiefel, 1977;Boyd, Dance, Landers & Wedd, 1979). In contrast, there are relatively few analogues in the chemistry of tungsten(V), particularly with dimeric species (Dori, 1981).…”