103,716 research outputs found
contributo a "Gondola signore gondola"
No full textintroduzioni, traduzioni a M. Alexander, R. Duncan; K. Koch; introduzione a G. Cors
Analisi della validità dell’equazione di Genevois nella selezione di colture per vinificazione
No full textSelection of strains saccharomyces cerevisiae of "Sagrantino D.O.C. for their wine - making properties: preliminary results
No full textInfluence of sugar type and level on malate metabolism of immobilized Schizosaccharomyces pombe cells
No full textInfluenza dell’arieggiamento sull’andamento dell’acetificazione provocata da una coltura di Acetobacter pasteurianus
No full textVinificazioni industriali in "purezza microbiologica": partecipazione della coltura starter al processo fermentativo
No full textThe growth kinetics and fermentation behaviour of some non-saccharomyces associated with wine-making
No full textThe stoichiometries of high-nuclerity transition metal Carbonyl cluster compounds. 1. Compact close-packed clusters
No full textCrystal of [Ir4Br(CO)11] (PPh4) are orthorhombic, space group P212121, with a 13.276(3), b 18.347(4), c 16.041(4) Å. The structure has been elucidated by the analysis of 2876 observed intensities recorded on an automatic diffractometer, and refined by the least-squares method to R 0.043. The anion contains a tetrahedral cluster of iridium atoms (mean IrIr 2.710 Å). The carbonyl arrangement differs from that of the parent Ir4(CO)12, and is similar to that known for Co4(CO)12 and Rh4(CO)12, with one terminal CO group in the basal M3(CO)9 moiety replaced by the bromide ligand; two of the bridging CO groups become markedly assymetric
Crystal and molecular structure of the anion phosphido-di-μ-carbonyltetradecacarbonyl hexacobaltate(1 -) in its tetraphenylphosphonium salt
No full textThe tetraphenylphosphonium salt of the anion [Co6P(CO)16]- crystallizes in the monoclinic space group P21/c, with unit cell dimensions a = 10.115(4), b = 21.233(9), c = 20.585(8) Å, β = 91.76(6)°, and Z = 4. The structure has been determined by direct methods from X-ray single-crystal counter data and refined by least-squares calculations to R = 0.059 for 4698 significant diffraction intensities. The anion contains an open array of metal atoms consisting of four triangles linked in a chain sorrounding a semi-interstitial phosphide atom. The nine CoCo bond distances fall into three classes: four have mean values of 2.574 Å, an other four have mean values of 2.656 Å, and one, very long, has a value of 2.934(2) Å. The phosphorus atom lies in an exposed position so that it is coordinated to all six metals, with CoP bonds in the range 2.165-2.268(2) Å. Of the 16 carbonyl groups 14 are terminally bound (mean CoC and CO distances 1.78 and 1.14 Å) and two are symetrically bridging (mean CoC and CO distances 1.90 and 1.17 Å, respectively). © 1983
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