Search results for "PENTAD"

showing 10 items of 589 documents

CCDC 205740: Experimental Crystal Structure Determination

2004

Related Article: A.Antinolo, I.Dorado, M.Fajardo, A.Garces, I.Lopez-Solera, C.Lopez-Mardomingo, M.M.Kubicki, A.Otero, S.Prashar|2004|Eur.J.Inorg.Chem.||1299|doi:10.1002/ejic.200300530

(mu~2~-Benzene-14-di-imido)-tetrachloro-bis(eta^5^-pentamethyl-cyclopentadienyl)-di-tantalumSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 766061: Experimental Crystal Structure Determination

2011

Related Article: F.Pelletier, V.Comte, A.Massard, M.Wenzel, S.Toulot, P.Richard, M.Picquet, P.Le Gendre, O.Zava, F.Edafe, A.Casini, P.J.Dyson|2010|J.Med.Chem.|53|6923|doi:10.1021/jm1004804

(mu~2~-Chloro)-(mu~2~-eta^5^-diphenylphosphino-cyclopentadienyl)-dichloro-(eta^5^-cyclopentadienyl)-(eta^6^-p-cymene)-ruthenium-titanium tetraphenylborateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 256921: Experimental Crystal Structure Determination

2005

Related Article: L.Bareille, P.Le Gendre, P.Richard, C.Moise|2005|Eur.J.Inorg.Chem.||2451|doi:10.1002/ejic.200401028

(mu~2~-eta^5^-(2-(Diphenylphosphino)ethyl)cyclopentadienyl-P)-bis(benzoato-O)-dichloro-(eta^5^-cyclopentadienyl)-(eta^6^-p-cymene)-ruthenium-titanium benzoic acid dichloromethane solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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Ethene/norbornene copolymerization with (isodicyclopentadienyl)titanium complex-MAO catalyst

2007

Norbornene (NB) homopolymerization and ethene/NB copolymerizations with a silylene-bridged (isodicyclopentadienyl)(tert-butylamido)titanium dichloride-methylalumoxane (MAO) catalyst system were investigated. This catalytic system shows no efficiency towards NB homopolymerization but produces poly(ethene-co-norbornene)s. An increase in the initial NB feed content leads to a loss of copolymerization activity as well as NB copolymer incorporation. The structure of the isodicyclopentadienyl fragment (IsodiCp) has a strong limiting effect on comonomer incorporation possibilities.

010405 organic chemistryChemistryComonomeriso(dicyclopentadienyl)titaniumchemistry.chemical_elementGeneral ChemistryLimitingethene/norbornene copolymerization010402 general chemistry01 natural sciencescatalysts0104 chemical sciencesCatalysis[ CHIM.POLY ] Chemical Sciences/Polymerschemistry.chemical_compound[CHIM.POLY]Chemical Sciences/PolymersPolymer chemistryCopolymeraluminoxanesComputingMilieux_MISCELLANEOUSTitaniumNorbornene
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Conformational Control of Metallocene Backbone by Cyclopentadienyl Ring Substitution: a New Concept in Polyphosphane Ligands Evidenced by “Through-Sp…

2009

The present study deals with the conformational control of the metallocene backbone within ferrocenyl polyphosphane ligands and their performance in the highly topical palladium-catalyzed heteroaromatics arylation by direct C−H activation. New substituted cyclopentadienyl rings were synthesized, which allowed the assembling of original tri- and diphosphanes. The bulky cyclopentadienyl lithium salts diphenylphosphino-3-(triphenyl)methylcyclopentadienyllithium (4) and 1,2-bis(diphenylphosphino)-4-(triphenyl)methylcyclopentadienyllithium (5) were prepared in excellent yield. The assembling of these new hindered cyclopentadienyl salts (Cp) with other Cp fragments was performed in order to prepa…

010405 organic chemistryStereochemistryOrganic Chemistry[ CHIM.COOR ] Chemical Sciences/Coordination chemistrychemistry.chemical_element[CHIM.CATA]Chemical Sciences/Catalysis010402 general chemistryRing (chemistry)01 natural sciencesMedicinal chemistry0104 chemical sciencesInorganic Chemistry[ CHIM.CATA ] Chemical Sciences/Catalysischemistry.chemical_compoundchemistryCyclopentadienyl complexYield (chemistry)Lithium[CHIM.COOR]Chemical Sciences/Coordination chemistryPhysical and Theoretical ChemistrySpin (physics)MetalloceneComputingMilieux_MISCELLANEOUS
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The Recent Development of a Sweet-Tasting Brazzein and its Potential Industrial Applications

2016

International audience; Brazzein is a small heat- and pH-stable sweet-tasting protein isolated from the West African plant, Pentadiplandra brazzeana. Brazzein combines a highly sweet potency, a long history of human consumption, and a remarkable stability, giving it great potential as a natural sweetener. Due to the difficulties of obtaining brazzein from its natural source, several efforts have been made to express brazzein using various heterologous expression systems. This chapter describes the biochemical, structural, sensory, and physiological properties of brazzein. We will summarize the current knowledge of the structure-activity relationship of brazzein. The biotechnological product…

0301 basic medicine0106 biological sciences[ SDV.AEN ] Life Sciences [q-bio]/Food and Nutritionreceiver01 natural sciences03 medical and health sciences0404 agricultural biotechnology010608 biotechnologygoût sucréBrazzeinSweet-tasting proteinHigh-potency sweetenersPentadiplandra030304 developmental biology2. Zero hunger0303 health sciencesbiologySweet-taste receptorStructure-function relationshipfood and beverages04 agricultural and veterinary sciencesbiology.organism_classification040401 food scienceWest african[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition030104 developmental biologyprotéinehigh-potency sweetenerNatural sourcebiology.proteinBrazzeinBiochemical engineeringproteinédulcorant intenserécepteur[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
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CCDC 1425258: Experimental Crystal Structure Determination

2016

Related Article: T. Mäkelä, K. Rissanen|2016|Dalton Trans.|45|6481|doi:10.1039/C6DT00414H

11'-(2356891112-Octahydro-1471013-benzopentaoxacyclopentadecine-1516-diyl)bis(3-(4-nitrophenyl)urea) NN-dimethylformamide solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 684679: Experimental Crystal Structure Determination

2009

Related Article: H.Detert, D.Lenoir, H.Zipse|2009|Eur.J.Org.Chem.|2009|1181|doi:10.1002/ejoc.200801076

1234-Tetrachloro-5-(dichloromethylene)-13-cyclopentadieneSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 799325: Experimental Crystal Structure Determination

2012

Related Article: L.Brelot, Xiao-yu Cao, J.Harrowfield, J.-M.Lehn, K.Rissanen, L.Russo|2011|CrystEngComm|13|2346|doi:10.1039/c0ce00814a

14812-Tetraazoniacyclopentadecane-10-carboxylate trichloride dihydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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Nonlinear Raman Spectroscopy in Gases

1992

0022-2860; Recent progress in high-resolution non-linear coherent Raman spectroscopy in the gas phase is reviewed. An instrumental spectral resolution of less than 100 MHz can be routinely achieved. It is limited by the convoluted linewidths of the lasers used for excitation and is of particular advantage in the gas phase, where the rotational structure of vibrational bands is to be resolved. It also allows the measurement of linewidths and line positions with an accuracy of 60 MHz when an appropriate wavemeter is used for calibration. After a short overview of the various techniques being used, examples of recent results of the evaluation of measurements on nitrogen, oxygen, carbon dioxide…

13CD4ROTATIONALLY INELASTIC RATESCOLLISIONSMETHANETHEORETICAL-ANALYSISSPECTRATRANSITIONSPENTADBANDSQ-BRANCHREGION
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