@article{BungardtVockertFeifeletal.1992,
  author    = {Bungardt, E. and Vockert, E. and Feifel, R. and Moser, U. and Tacke, Reinhold and Mutschler, E. and Lambrecht, G. and Suprenant, A.},
  title     = {Characterization of muscarinic receptors mediating vasodilation in guinea-pig ileum submucosal arterioles by the use of computer-assisted videomicroscopy},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-64206},
  year      = {1992},
  abstract  = {Muscarinic receptors of rcsistance vessels (submucosal artcrioles, outside diametcr 50-75 J,Lm) from the guinea-pig small intestinc were invcstigatcd in vitro using a computcr-assisted vidcomicroscopy system (Diamtrak <~t ). The muscarinic receptor which mediates vasodilation of prccontractcd [U-46619 (300 nM) or (- )-noradrcnaline (1 0 J.L M)] artcriolcs was characterized with scveral muscarinic agonists and subtypc-sclectivc antagonists. Thc following agonists all produccd cquivalent maximum vasodilation (given in rank ordcr of potency): acctylcholinc = arccaidinc propargyl cstcr (APE) > oxotremorine = ( ± )-muscarinc = ( ± )-mcthacholinc > carbachol > 4-[[N-{4-chlorophenyl)carbamoyl]oxy]-2-hutynyltrimcthylammonium iodide (4-CI-McN-A- 343). 4-([N-(3-ChlorophcnyD-carbamoyl)oxy]-2-butynyltrimcthylammonium chloride (McN-A-343) and N-ethyl-guvacinc propargyl ester (NEN-APE) produccd minimal or no artcriolar vasodilation. Thc muscarinic antagonists pircnzcpinc, ( ± )-5,11-dihydro-11- [[[2-[2-((dipropylamino)methyl}-1-pipcridinyl]ethyl]amino ]-carbonyi]-6H-pyrido(2,3-h)( 1 ,4)-benzodiazcpin-6-onc (AF-DX 384 ), 11- [[ 4-[4-(dicthylamino)butyl]-1-piperidinyl]acetyl]-5, ll-dihydro-6H-pyrido(2.3-h)( 1,4 )-bcnzodiazepin-6-onc (AQ-RA 741 ), p-fluorohexahydro- sila-difcnidol (p-F-HHSiD), 4-diphcnylacetoxy-N-methylpipcridine mcthiodidc (4-DAMP) and (R)- and (S)hexahydro- difcnidol [(R)-HHD, (S)-HHD] shifted thc muscarinc, mcthacholinc or carbachol dosc-rcsponsc curve to the right in a compctitive manner. Schildanalysis of the data yicldcd pA\(_2\) valucs for pircnzcpinc (6.74/6.9), AF-DX 384 (6.72), AQ-RA 741 (6.58), p-F-HHSiD (7.53/7.57), 4-DAMP (9.06), (R)-HHD (7.88/8.32) and (S)-HHD (5.52/5.88). Thus, it can he concluded that submucosal arteriolcs posscss only the M\(_3\) functional muscarinic reccptor, the activation of which causcs hlood vcsscl dilation. The preparation dcscribcd is considcrcd to be a valuable now bioassay for pharmacological investigations of drug actions at muscarinic receptors in the peripheral vascular system.},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{KauppCharkinSchleyer1992,
  author    = {Kaupp, Martin and Charkin, Oleg P. and Schleyer, Paul von Rague},
  title     = {The Ions MCp\(^{2+}\) (M = Sc, La): Significantly Bent Sandwich Species},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60082},
  year      = {1992},
  abstract  = {No abstract available},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{KauppSchleyer1992,
  author    = {Kaupp, Martin and Schleyer, Paul von Rague},
  title     = {Struktur- und Stabilit{\"a}tstrends bei Fluor(methyl)plumbanen},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60091},
  year      = {1992},
  abstract  = {No abstract available},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{KauppSchleyer1992,
  author    = {Kaupp, Martin and Schleyer, Paul von Rague},
  title     = {The Structure and Stability Trends Fluoro(methyl)plumbanes},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60105},
  year      = {1992},
  abstract  = {No abstract available},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{KauppSchleyer1992,
  author    = {Kaupp, Martin and Schleyer, Paul von Rague},
  title     = {Do Low-Coordinated Group 1-3 cations M\(^n\) \(^+\)L\(_m\) (Mn\(^+\) = K\(^+\), Rb\(^+\), Cs\(^+\), Ca\(^{2+}\), Sr\(^{2+}\), Ba\(^{2+}\), Sc\(^{3+}\), Y\(^{3+}\), La\(^{3+}\); L = NH\(_3\), H\(_2\)0, HF; m = 1-3) with a Formal Noble-Gas Electron Configuration Favor Regular or "Abnormal" Shapes?},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60111},
  year      = {1992},
  abstract  = {No abstract available},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{KauppSchleyerDolgetal.1992,
  author    = {Kaupp, Martin and Schleyer, Paul von Rague and Dolg, Michael and Stoll, Hermann},
  title     = {The Equilibrium Structures of Monomeric Group 2 and Lanthanide(II) Metallocenes MCp2 (M = Ca, Sr, Ba, Sm, Eu, Yb) Studied by ab Initio Calculations},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60139},
  year      = {1992},
  abstract  = {No abstract available},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{KauppSchleyerStoll1992,
  author    = {Kaupp, Martin and Schleyer, Paul von Rague and Stoll, Hermann},
  title     = {Model CaH\(_2\)(L) and CaF\(_2\)(L) Complexes (L = Ne, Ar, Kr, Xe, CO, N\(_2\)): Consequences of Interactions between "Inert-Gas" Ligands and Floppy Molecules},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60078},
  year      = {1992},
  abstract  = {No abstract available},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{KauppSchleyer1992,
  author    = {Kaupp, Martin and Schleyer, Paul. von Rague},
  title     = {The Structural Variations of Monomeric Alkaline Earth MX\(_2\)-Compounds (M = Ca, Sr, Ba; X = Li, BeH, BH\(_2\), CH\(_3\), NH\(_2\),OH, F). An ab Initio Pseudopotential Study},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60152},
  year      = {1992},
  abstract  = {No abstract available},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{MoesgesHampelKauppetal.1992,
  author    = {M{\"o}sges, Gabriele and Hampel, Frank and Kaupp, Martin and Schleyer, Paul von Rague},
  title     = {Experimental and Theoretical studies of Alkaline earth and Alkali Metal Coordination: X-ray crystal structures of Calcium, Strontium, and Barium Carbazoles and ab Initio Model calculations},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60127},
  year      = {1992},
  abstract  = {No abstract available},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{SchleyerKauppHampeletal.1992,
  author    = {Schleyer, Paul von Rague and Kaupp, Martin and Hampel, Frank and Bremer, Matthias and Mislow, Kurt},
  title     = {Relationships in the Rotational Barriers of Group 14 Ethane Congeners H\(_3\)X-YH\(_3\) (X, Y = C, Si, Ge, Sn, Pb). Comparisons of ab Initio Pseudopotential and All-Electron Results},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60147},
  year      = {1992},
  abstract  = {No abstract available},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{TackeBechtMatternetal.1992,
  author    = {Tacke, Reinhold and Becht, J. and Mattern, G. and Kuhs, W. F.},
  title     = {Zur Existenz zwitterionischer \(\lambda_5\)-(Ammonioorganyl)tetrafluorosilicate: Synthese sowie Kristall- und Molek{\"u}lstruktur von Tetrafluoro(pyrrolidiniomethyl)silicat},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-64217},
  year      = {1992},
  abstract  = {The zwitterionic tetrafluoro(pyrrolidiniomethyl)silicate (6) was synthesized by the reaction of trimethoxy(pyrrolidinomethyl) silane (7) with hydrogen fluoride in ethanol/hydrofluoric acid (yield 83\%). 6 crystallizes in the space group P2\(_1\)fc with two crystallographically distinct molecules in the asymmetric unit. In both molecules the pentacoordinate silicon atom is surrounded by four fluorine atoms and one carbon atom, the latter being in an equatorial position. The coordination polyhedron of the silicon atoms can be described as a slightly distorted trigonal bipyramid. The zwitterionic structure was also proved for dissolved 6 (solution in CD\(_3\)CN, NMRspectroscopic studies).},
  subject      = {Anorganische Chemie},
  language  = {de}
}
@article{TackeBeckerBergetal.1992,
  author    = {Tacke, Reinhold and Becker, B. and Berg, D. and Brandes, W. and Dutzmann, S. and Schaller, S.},
  title     = {Bis(4-fluorophenyl)methyl(1H-1,2,4-triazol-1-yl-methyl)germane, a germanium analogue of the agricultural fungicide flusilazole: synthesis and biological properties},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-64224},
  year      = {1992},
  abstract  = {Bis( 4-fluorophenyl)methyl(l H-1,2,4-triazol-1-yl-methyl)germane (2), a germanium analogue of the agricultural fungicide flusilazole (1), has been synthesized from Cl\(_3\)GeCH\(_2\)CI (3) by both a three-step and a four-step synthesis (3-> (p-F-C\(_6\)H\(_4\))\(_2\)Ge(CH\(_2\)Cl)Br (4)-> (p-F-C\(_6\)H\(_4\))\(_2\)Ge(CH\(_2\)CI)CH\(_3\) (S)-> 2; S ~ (p-F-C\(_6\)H\(_4\))\(_2\)Ge(CH\(_2\)I)CH\(_3\) (6)-> l). The fungicidal properties of l have been compared with those of the parent silicon compound 1 (studies on Si/Ge bioisosterism). In various test systems, the SijGe analogues 1 and 2 showed comparable fungicidal properlies (in activity against plant pathogenic fungi: in agar plate diffusion tests and greenhause evaluations; in activity against human pathogenic fungi: in serial dilution tests). In addition, 1 and 2 displayed comparable potencies in respect of sterol biosynthesis inhibition in Sacclulromycopsis {\"u}polytica and Pyricularia oryzae, the mode of action being primarily an inhtbition of oxidative C14-demethylation.},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{TackeHengelsbergKlingneretal.1992,
  author    = {Tacke, Reinhold and Hengelsberg, H. and Klingner, E. and Henke, H.},
  title     = {Synthese der Si-funktionellen Acetylsilane tBu(Me\(_3\)SiCH\(_2\))[MeC(O)]SiF und tBu(Me\(_3\)SiCH\(_2\))[MeC(O)]SiH sowie Synthese und Kristallstruktur des Acetylsilanols tBu(Me\(_3\)SiCH\(_2\))[MeC(O)]SiOH: Substrate f{\"u}r mikrobielle Reduktionen},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-64192},
  year      = {1992},
  abstract  = {The racemic Si-functional acetylsilanes tBu(Me\(_3\)SiCH\(_2\))[ MeC(O)]SiF (1) and tBu(Me\(_3\)SiCH\(_2\))[MeC(O)]SiH (2) and the racemic acetylsilanol tBu(Me\(_3\)SiCH\(_2\))[MeC(O)]SiOH (3) were synthesized from Si(OMe)\(_4\) (4) as substrates for microbial reductions [4 -> tBuSi(OMe)\(_3\) (5) -> tBu(Me\(_3\)SiCH\(_2\))Si(OMe)\(_2\) (6) -> tBu(Me\(_3\)SiCH\(_2\))SiF\(_2\) (7)-> tBu(Me\(_3\)SiCH\(_2\))(CH\(_2\) = C(OMe))SiF (8) -> 1; 8 -> tBu(Me\(_3\)SiCH\(_2\))[CH\(_2\) = C(OMe)]SiH (9) -> 2; 6 -> tBu(Me\(_3\)SiCH\(_2\))[CH\(_2\) = C(OMe)]SiOMe (10) -> 3]. Compounds 1-3 were found to be reduced by cells of Trigonapsis variabilis (DSM 70714) ( = SiC(O)Me -> = SiCH(OH)Me}. The crystal and molecular structure of 3 was studied by singlecrystal X-ray diffraction. In the crystal, racemic 3 forms infinite chains built up by intermolecular 0-H .. ·O bonds between the hydroxyl and acetyl groups of molecules of the same absolute configuration.},
  subject      = {Anorganische Chemie},
  language  = {de}
}
@article{TackeWiesenbergerBeckeretal.1992,
  author    = {Tacke, Reinhold and Wiesenberger, F. and Becker, B. and Rohr-Aehle, R. and Schneider, P. B. and Ulbrich, U. and Sarge, S. M. and Cammenga, H. K. and Koslowski, T. and Niessen, W. von},
  title     = {Ester von (Hydroxymethyl)diorganylsilanen: Synthese und thermisch induzierte Umlagerung},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-64188},
  year      = {1992},
  abstract  = {Twenty silanes of the type R\(^1\)R\(^2\)Si(H)CH\(_2\)OR\(^3\) (A) were syn- and entropy of activation) of these reactions were studied by thesized {R\(^1\), R\(^2\) = Me, Ph, 1-naphthyl, PhCH\(_2\), Me\(_3\)SiCH\(_2\); OR\(^3\) means of d{\"u}ferential scanning calorimetry (DSC). In addition, = OC(O)Me, OC(O)Ph, OC(O)CF\(_3\) , OS(0)\(_2\)CF\(_3\), OP(O)Ph\(_2\), the kinetics of all reactions were investigated by 1H-NMR OC(O)Cl, and studied for their thermal behaviour. The silanes spectroscopy. The transition state of the rearrangement was A undergo a thermally induced rearrangement to give the investigated by an ab initio study based on the model comcorresponding silanes R\(^1\)R\(^2\)Si(OR\(^3\))Me (B). For compounds with pound H\(_3\)SiCH\(_2\)OC(O)H (-> MeH\(_2\)SiOC(O)H]. The theoretical OR3 = OC(O)Cl, an additional decarboxylation takes place to data and the experimentally obtained energetic and kinetic yield the chlorosilanes R1R2Si(Cl)Me. Except for the deriva- data are discussed in terms of mechanistic aspects of the retives with OR\(^3\) = OC(O)Cl, the energetic (reaction enthalpy) arrangement reaction A -> B. and kinetic data (reaction order, frequency factor, enthalpy ...},
  subject      = {Anorganische Chemie},
  language  = {de}
}
@article{TackeWuttkeHenke1992,
  author    = {Tacke, Reinhold and Wuttke, F. and Henke, H.},
  title     = {Zur Stereochemie der mikrobiellen Reduktion von rac-Acetyl( t-butyl)methylphenylsilan mit Trigonopsis variabilis (DSM 70714) und Corynebacterium dioxydans (ATCC 21766): Aufkl{\"a}rung der absoluten Konfiguration der Biotransformationsprodukte (SiR,CR)- und ( SiS ,CR)-t-Butyl( 1-hydroxyethyl)methylphenylsilan},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-64176},
  year      = {1992},
  abstract  = {No abstract available},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{WaelbroeckCamusTastenoyetal.1992,
  author    = {Waelbroeck, M. and Camus, J. and Tastenoy, M. and Mutschler, E. and Strohmann, C. and Tacke, Reinhold and Schjelderup, L. and Aasen, A. and Lambrecht, G. and Christophe, J.},
  title     = {Stereoselective interaction of procyclidine, hexahydro-difenidol, hexbutinol and oxyphencyclimine, and of related antagonists, with four muscarinic receptors},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-64237},
  year      = {1992},
  abstract  = {Wc invcstigatcd thc binding properlies of thc (R)- and (Sl-cnantiomcrs of thc muscarinic antagonists trihcxyphcnidyl, procyclidinc, hcxahydro-difcnidol. p-fluoro-hcxahydro-difcnidol. hcxbutinol, p-fluoro-hcxbutinnl. and thcir corrcsponding methiodidcs at muscarinic M\(_1\), M\(_2\)• M\(_3\) and M\(_4\) receptor subtypes. In addition. binding properlies of thc (R)- and (S)-cnantiomcrs of oxyphcncycliminc wcrc studicd. The {R)- cnantiomcrs (cutomcrs} of all the compounds had a grcatcr affinity than the (S)-isomcrs for thc four muscarinic rcccptor subtypcs. Thc binding pattcrns of thc (R)- and (S)-enantiomers wcrc gcncrally different. We did not obscrvc any gcncral corrclation hctwccn thc potcncy of thc high-affinity enantiomer and Lhc affinity ratio (cudismic ratio) of the two cnantiomcrs. Thc rcsuhs arc discusscd in tcrms of a 'four suhsitcs' binding modcl.},
  subject      = {Anorganische Chemie},
  language  = {en}
}