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Two organometallic compounds containing an Fe−Sn bond, CpFe(CO)2(SnMe3) (Cp:  η⁵-cyclopentadienyl) and cis-Fe(CO)4(SnMe3)2, have been used as single-source low-pressure CVD precursors to grow Fe/Sn alloy thin films at 300−420 °C. Deposited films were characterized by various surface analytical techniques. Electron probe microanalyses show that Fe and Sn elements are evenly distributed in the films. X-ray powder diffraction patterns indicate that these are polycrystalline films. Polycrystalline FeSn films have been successfully prepared from CpFe(CO)2(SnMe3) with the deposition rates of 78−175 Å/min. The films composed of FeSn2 phase with a minor constituent of FeSn were obtained by using cis-Fe(CO)4(SnMe3)2 as precursor and the deposition rates were 130−330 Å/min.

A series of silver compounds of empirical formula (β‐diketanato)Ag(BTMSA) (where BTMSA is bis(trimethylsilyl)acetylene) were prepared from reactions of Ag2O with β‐diketone in the presence of BTMSA. All these compounds were characterized by elemental analyses, nuclear magnetic resonance (NMR), and infrared (IR) spectroscopic methods. X‐ray diffraction (XRD) analysis of the crystal structure of (Btfac)Ag(BTMSA) shows a monomeric silver species in the solid state. Hot‐wall CVD experiments revealed that pure silver thin films can be deposited by using (hfac)Ag(BTMSA) as the precursor in the temperature range 150–250 °C.

Novel silver alkyne complexes of the empirical formula [(hfac)Ag]nL, where hfac = 1,1,1,5,5,5-hexafluoro-2,4-pentanedionato and n = 1 for L = diphenylacetylene (1) and bis(trimethylsilyl)acetylene (2) and n = 2 for L = 2-butyne (3), 2-hexyne (4), 3-hexyne (5), and 4-octyne (6), were prepared from reactions of Ag2O with hfacH in the presence of the corresponding alkynes. X-ray single-crystal diffraction analyses reveal that compound 1 is a mononuclear silver complex with a coordination number of 3 and compound 6 is a tetranuclear silver species in which each silver atom is four-coordinate.

New silver complexes of alkenes of empirical formula (β-diketonato)Ag(VTES), where β-diketonato = 1,1,1,5,5,5-hexafluoro-2,4-pentanedionato (hfac) (1), 1,1,1-trifluoro-2,4-pentanedionato (tfac) (2), and 2,2-dimethyl-6,6,7,7,8,8,8-heptafluoro-3,5-octanedionato (fod) (3) and VTES = vinyltriethylsilane, were prepared from reactions of Ag2O with β-diketones in the presence of VTES. All compounds were characterized by elemental analyses and ¹H, ¹³C, and ¹⁹F NMR and IR spectra. The crystal structure of compound 3 determined by X-ray diffraction analysis showed a dimeric silver species with coordination of the C&dbd;C double bond of VTES, two oxygen atoms of a chelating fod ligand, and the methine C atom of another fod in the solid state. Hot-wall chemical vapor deposition experiments revealed that compound 1 is suitable as a precursor to deposit pure silver films in the temperature range 160−280 °C.

Reductive carbonylation of M(CO)4(MeC(CH2PMe2)3) (M: Ti, Zr, Hf) by (K(cryptand 2.2.2))(naphthalene) in THF at ‐70 °C provides 78‐83% yields of the thermally robust title salts including the previously inaccessible (Hf(CO)6)2‐.

Consecutive reduction of the titanium tetrachloride complex (I), reaction with the tin and germanium salts (II) and carbonylation with carbon monoxide (III) yield complexes which are characterized as the tetraethylammonium salts (V).

Reductive carbonylations of either (II) or (IV) by potassium naphthalenide yield isolable salts of the title dianion (Ti(CO)6)2‐provided an appropriate cryptand or crown ether is present to effectively complex the potassium cations.

The title complex (V) is prepared according to the scheme and characterized by IR, 1H, 31P, and 13C NMR spectroscopy.

The air‐sensitive, thermally stable title complexes (IV) are prepared according to the scheme and characterized by IR, 13C(1H) and 31P(1H) NMR spectral data.