Advanced Applications of NMR to Organometallic Chemistry by Marcel Gielen, Rudolph Willem, Bernd Wrackmeyer PDF

By Marcel Gielen, Rudolph Willem, Bernd Wrackmeyer

ISBN-10: 0471959383

ISBN-13: 9780471959380

This new sequence bargains best contributions by means of popular chemists reviewing the state of the art of this large learn zone. actual Organometallic Chemistry goals to enhance new insights and to advertise novel curiosity and investigations acceptable to organometallic chemistry. NMR spectroscopy has had a substantial influence on many fields of chemistry, even though it has served organometallic chemistry regularly on a regimen point. In a suite of stories, top chemists supply an perception into the scope of purposes and discover the possibility of this method for organometallic chemists. complicated purposes of NMR to Organometallic Chemistry;* Illustrates how contemporary 1D and second and really good multinuclear purposes can clear up particular difficulties encountered via organometallic chemists* Surveys smooth NMR strategies in organometallic chemistry* comprises steel NMR similar options* specializes in the appearance of reliable nation NMR in organometallic chemistryThis publication will end up useful to the NMR spectroscopist and organometallic chemists and also will be of curiosity to all natural, inorganic and actual chemists Contents: Selective Excitation and Selective Detection in ?29Si NMR; Two-dimensional ?13C, steel Nuclei Correlation; Two-dimensional ?1H-?119Sn Proton Detected Correlation Spectroscopy in Coordination Chemistry of Hypervalent Organotin Compounds; oblique Nuclear ?119Sn-X Spin-Spin Coupling; reliable nation NMR functions in Organotin and Organolead Chemistry; reliable kingdom NMR Investigations of steel Carbonyl Complexes; excessive strain NMR in Organometallic Chemistry; Multinuclear NMR Spectroscopy in Supercritical Fluids; excessive solution ?6,7Li NMR of Organolithium Compounds; steel NMR of Organovanadium, -Niobium and -Tantalum Compounds; NMR of steel Nuclei in Clusters; ?171Yb NMR Spectroscopy

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Tab. 1. Homologe Reihe der Alkane CnH2n+2 , Bezeichnungen, Schmelz- und Siedepunkte (bei Normaldruck) n CnH2n+2 Kurzschreibweise Bezeichnung Schmp. °C 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 20 30 40 50 60 CH4 C2H6 C3H8 C4H10 C5H12 C6H14 C7H16 C8H18 C9H20 C10H22 C11H24 C12H26 C13H28 C14H30 C15H32 C20H42 C30H62 C40H82 C50H102 C60H122 H3C−H H3C−CH3 H3C−CH2−CH3 H3C−(CH2)2−CH3 H3C−(CH2)3−CH3 H3C−(CH2)4−CH3 H3C−(CH2)5−CH3 H3C−(CH2)6−CH3 H3C−(CH2)7−CH3 H3C−(CH2)8−CH3 H3C−(CH2)9−CH3 H3C−(CH2)10−CH3 H3C−(CH2)11−CH3 H3C−(CH2)12−CH3 H3C−(CH2)13−CH3 H3C−(CH2)18−CH3 H3C−(CH2)28−CH3 H3C−(CH2)38−CH3 H3C−(CH2)48−CH3 H3C−(CH2)58−CH3 Methan Ethan Propan Butan Pentan Hexan Heptan Octan Nonan Decan Undecan Dodecan Tridecan Tetradecan Pentadecan Eicosan Triacontan Tetracontan Pentacontan Hexacontan −183 −183 −190 −138 −130 −95 −90 −59 −54 −30 −26 −10 −6 6 10 36 66 81 −164 −89 −42 0 36 69 98 126 151 174 196 216 230 251 268 Elementarer Baustein der Alkane ist der durch sp3-Hybridisierung des Kohlenstoff-Atoms erklärbare Bindungs-Tetraeder (Kap.

Diese "Bruttogleichung" gibt keinerlei Aufschluß über den Reaktionsmechanismus. Der Reaktionsmechanismus ist der tatsächliche molekulare Ablauf einer Reaktion von den Edukten über reaktive Zwischenstufen zu den Produkten. Die grundlegenden Reaktionen der organischen Chemie verlaufen nach relativ wenigen, für bestimmte Stoffklassen typischen Mechanismen. Für Alkane typisch ist z. B.

2). n-Butan und Methylpropan (Isobutan) sind Konstitutionsisomere (Isomere von griech. ισοζ = ähnlich, gleich und µεροζ = Teil); Konstitutionsisomere besitzen dieselbe Summenformel und somit dieselbe Molekülmasse; sie unterscheiden sich jedoch durch ihre Atomverknüpfung (verzweigt oder unverzweigt), die Konstitution. n-Butan ist ein langgestrecktes, Methylpropan ein kompaktes Molekül (Abb. 2). CH3 H H H H n-Butan H C C C C H H 3C CH2 CH 2 CH3 H H H H C4H10 H H C C CH3 H Methylpropan (Isobutan) H C H H H CH3 H C C C H H3C CH CH 3 H H H H H CH 3 H3C H C CH3 Abb.

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Advanced Applications of NMR to Organometallic Chemistry by Marcel Gielen, Rudolph Willem, Bernd Wrackmeyer

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