... sulfonated-functionalized Pd (II) NHC complex and its catalytic study in Suzuki-Miyaura coupling reaction are described in chapter 4 II Chapter Palladium( Palladium( II II)) complexes with CSC-pincer type ... Sulfonate-functionalized NHC Palladium( Palladium( II II)) complex and catalytic studies in Suzuki-Miyaura coupling reaction 4.1 Synthesis of sulfonate-functionalized NHC Pd (II) complex 30 30 III 4.2 Catalytic ... conductivity for pincer complexes increases largely, while the increase for pseudo pincer complexes is much smaller 29 II Chapter Sulfonate-functionalized NHC Palladium( Palladium( II II)) complex and...
Ngày tải lên: 02/10/2015, 17:14
... structures The complexes with APV are in cyan, and the complexes with SQV are in gray The arrow indicates the shifts between Ca atoms at the residues 50 and 51 in the PR complexes with the two ... the mutant complexes with APV and SQV The structures of PR complexes with APV or SQV were analyzed in order to understand their distinct drug resistance profiles PRWT–APV was compared ˚ with PRWT–SQV ... PRWT–APV compared with PRWT–SQV (B) PRI50V–APV compared with PRI50V–SQV (C) PRI54M–APV compared with PRI54M–SQV (D) PRI54V–APV compared with PRI54V–SQV (E) PRI84V–APV compared with PRI84V–SQV Dashed...
Ngày tải lên: 18/02/2014, 04:20
Tài liệu Báo cáo khoa học: Structure of RNase Sa2 complexes with mononucleotides – new aspects of catalytic reaction and substrate recognition pptx
... Sa2 with a free active site (3D5G) and in complexes with 2¢-GMP (3DGY), exo2¢,3¢-GCPT (3D5I) and 3¢-GMP [crystal form I (3D4A) was prepared by diffusion of the mononucleotide, and crystal form II ... RNase Sa2–mononucleotide complexes Table Refinement statistics of RNase Sa2 with free active site and complexed with 2¢-GMP, 2¢,3¢-GCPT, and 3¢-GMP (crystal forms I and II) AU, asymmetric unit; ... hydrogen bond with the Glu56 OE1, and O3¢ forms a hydrogen bond with the side chain of His86 The only phosphate group oxygen forms two hydrogen bonds with Arg67 NH1 and NH2 The sulfur is within hydrogen...
Ngày tải lên: 18/02/2014, 11:20
Báo cáo khoa học: Reactions of gold(III) complexes with serum albumin docx
... anticancer ruthenium(III) complexes and of auranofin with plasma proteins [19–21] Very scarce information exists on the reaction of gold(III) complexes with proteins In fact gold(III) complexes generally ... revealed for all mentioned gold(III) complexes in line with previous reports [1,3] Spectrophotometric studies of the reaction with BSA As all these gold(III) complexes, under physiological conditions, ... bis(2-aminoethyl)amido-chlorogold (III) complexes J Chem Soc., Dalton Trans 220–223 11 Kimura, E., Kurogi, Y & Takahashi, T (1991) The first gold (III) macrocyclic polyamine complexes and application to selective gold (III)...
Ngày tải lên: 07/03/2014, 21:20
Báo cáo khoa học: Small heat shock protein Hsp27 prevents heat-induced aggregation of F-actin by forming soluble complexes with denatured actin docx
... demonstrate formation of stable complexes of Hsp27-3D with denatured actin The size of these complexes (average 5940 As already mentioned, the soluble complexes of Hsp27-3D with denatured actin, which ... value for the complexes of Hsp27-3D with denatured actin strongly depends on the Hsp27-3D concentration in the sample (Fig 3) The Rh of the complexes decreased from 53 to 16– 17 nm with an increase ... compilation ª 2007 FEBS 5939 Stable complexes of small HSP with denatured actin A V Pivovarova et al Fig Dependence of Rh for the complexes of denatured actin with Hsp27-3D on the Hsp27-3D concentration...
Ngày tải lên: 16/03/2014, 06:20
Báo cáo khoa học: The bI/bIII-tubulin isoforms and their complexes with antimitotic agents pptx
... the analysis of the complexes between these two ligands and the isotypes I and III of the human b-tubulin We also investigated the complexes involving the bI and bIII isoforms with epothilone A ... interact with Arg320 The models of the complexes of IDN5390 with the bI and bIII-tubulin isoforms are shown in Fig The bound conformation of the ligand is quite similar in the I1 and I3 complexes, ... paclitaxel, IDN5390 and epothilone A, with isotypes I and III of human b-tubulin Increased expression of bIII isoform in cancer cells has been correlated with paclitaxel resistance in several...
Ngày tải lên: 16/03/2014, 13:20
Báo cáo Y học: The role of the second binding loop of the cysteine protease inhibitor, cystatin A (stefin A), in stabilizing complexes with target proteases is exerted predominantly by Leu73 pdf
... binding loop of cystatin A is important for the stability of complexes with cysteine proteases Its quantitative role in protease binding varies with the target enzyme, but is especially important for ... was obtained by a third PCR with the standard PCR primers and with a mixture of the products of the previous two PCRs as template The resulting DNA fragment was cleaved with NcoI and BamHI, and ... an essentially complete reaction, with 80% of the enzyme being saturated with the inhibitor The substrate was then added to a final concentration of 100 lM with minimal dilution of the complex...
Ngày tải lên: 17/03/2014, 10:20
Báo cáo khoa học: Polysaccharide binding sites in hyaluronate lyase – crystal structures of native phage–encoded hyaluronate lyase and its complexes with ascorbic acid and lactose docx
... primarily with GluB167 and LysC179 (Table 2) GluB167 Oe2 interacts with ascorbic acid ˚ O2H with a hydrogen bond at a distance of 2.5 A, whereas LysC179 Nf forms two bifurcated hydrogen bonds with ... obtained the crystals of HylP2 complex with the HA substrate or its analogue However, with the help of the structures of the native protein and its two complexes with ascorbic acid and lactose, we ... it has a stable conformation with a number of interactions within the loop, as well as with other parts of the protein It is important to note that Ser129 interacts with Tyr149, thus making it...
Ngày tải lên: 23/03/2014, 04:21
Báo cáo khoa học: Peroxin Pex21p interacts with the C-terminal noncatalytic domain of yeast seryl-tRNA synthetase and forms a specific ternary complex with tRNASer potx
... interaction with the peroxin is mediated by a short C-terminal peptide (consisting of 13–20 amino acids) that facilitates formation of a ternary complex with tRNASer Results Pex21p participates in ternary ... have also been found to associate with aaRSs Yeast TyrRS interacts with Knr4, a protein involved in cell wall synthesis [29], and heat shock protein 90 interacts with human glutamyl-prolyl-tRNA ... upon tRNA binding Whereas SerRS (Fig 1, lane 1) forms stable binary complexes both with cognate tRNASer (Fig 1, lane 2) and with Pex21p (Fig 1, lane 4), we did not observe Pex21p–tRNASer interactions...
Ngày tải lên: 23/03/2014, 09:20
Báo cáo khoa học: The potyviral virus genome-linked protein VPg forms a ternary complex with the eukaryotic initiation factors eIF4E and eIF4G and reduces eIF4E affinity for a mRNA cap analogue ppt
... copurify with eIF4E in complexes associated with membrane fractions [25] In infected cells, a substantial amount of eIF4G may be involved in complexes with endogenous forms of VPg If these complexes ... complexed with VPg (A) BN-PAGE of the protein fraction retained on glutathione–Sepharose 4b Lane 2, the plant soluble extract was incubated with recombinant VPgÆGst fusion and mixed with glutathione–Sepharose ... the plant soluble extract was incubated with nonfused recombinant GST and mixed with glutathione–Sepharose 4b After being washed, the fraction eluted with glutathione was analysed By SDS ⁄ PAGE...
Ngày tải lên: 23/03/2014, 10:21
Báo cáo khoa học: Mutational analysis of a type II thioesterase associated with nonribosomal peptide synthesis pdf
... GCC GGC AAA CGG AAA AGC GAT GAG CTG TG TEIIsrfH85A TEIIsrfS86A TEIIsrfS86C TEIIsrfS112A TEIIsrfD163A TEIIsrfD189A TEIIsrfD190A TEIIsrf DD189/190AA TEIIsrfH216L GTG CTG TTC GGA GCC AGT ATG GGC ... modification of TEIIsrf and TEIIsrf mutants DTNB (4 lL of a 10 mM solution in dimethyl sulfoxide) was added to 46 lL of a 25 lM solution of TEIIsrf, TEIIsrfC18A, TEIIsrfS86C or TEIIsrfS86A and incubated ... Biochem 271) Ó FEBS 2004 Fig Alignment of 16 TEIIs TEIIsrf was aligned together with 14 other TEIIs of microbial secondary metabolism The mammalian TEIIrat was also added to the alignment All the...
Ngày tải lên: 30/03/2014, 13:20
Test 45 minutes the first time for term II grade 10 with keys CB
... had learned harder D will learn harder 31 Staying up late is very bad your health A on B for C with D about 32 The word ‘to take care of’ means A to look like B to look after C to look...
Ngày tải lên: 30/06/2014, 17:00
Palladium(II) catalyzed oxidative functionalization of c h bonds using alkyne as building block
... Reductive Elimination PdII L L PdIV I R' Oxidative Addition II IV (Pd /Pd ) PdII R'I (PdII/PdIV) R R' PdII R' R' R' β Alkyl II Pd Elimination R' R R' Pd0 Heck Coupling The Pd(0)/Pd (II) /Pd(IV) ‘cascade ... cross-coupling reactions O R1 R2 R Pd0 PdII Ar PdII X R Nu Ar R1 R2 LG Nu O Ar Nu X H PdII R1 O PdII Ar R2 Pd(0) base R1 R R1 R sy n-Hydride Elimination PdIIX H PdII (d) Ar X R R1 R2 R (c) Pd0 R LG ... include Pd (II) , Pt (II) and Rh(III).[13] These transformations often proceed with high selectivity for the less sterically hindered C-H bond of a molecule, since the C-H bond reacts directly with the...
Ngày tải lên: 09/09/2015, 11:25
Synthesis and reactivity of group 6 and group 8 organometallic complexes with sulfur containing ligands
... S S S N N N N CrIII S S N N Li[HB(mt)2(pz)] CrIII CrIII S H B S Na[H2B(mt)2] Br Br N N Li+ S K[HB(mt)3] CrIII B S H S PF6 N N Cr N S N PF6 N B B H H H Cl Cl Cl RuII RuII RuII RuII B H S Cl N S ... 11A N III III Ru PF6 Cl Ru Cl 12 Me O Cl Cl RuII RuII Cl N II RuII Ru O Me 13 11B Synthesis and Reactivity of Group and Group Organometallic Complexes with Sulfurcontaining Ligands VIII ... electrochemical behaviour of complexes and 10 were also investigated Chapter describes the syntheses of mixed-sandwich Cp*RuII/III complexes with poly(methimazolyl)borates [Cp*RuIII(3-S,S',S'')-{HB(mt)3}](14A)X...
Ngày tải lên: 10/09/2015, 15:49
Synthetic and structural studies of copper, gold and palladium heterocyclic carbene complexes
... Au(I)-NHC complexes 1.2.2.4 Au(III)-NHC Complexes Reports on Au(III)-NHC complexes are scarce Fig 1.12 depicts some examples of Au(III)-NHC complexes The [(NHC)AuBr3]-type complexes, II- 24, were ... II- 9a L = EtC=CEtF II- 9b L = PhC=CCHF N t Bu II- 8 HX, base R N Au X Au Me O Au X N R II- 6a R = Dipp, X= N S O O II- 6b R = tBu, X = N3, II- 6c R = tBu, X =NCO, R R N Au X N R II- 3 II- 5a II- 5b II- 5c ... compounds to a Au(III) source (3) Cyclization of Au(III)-coordinated isocyanide ligands (4) Reaction of Au(III) source with free carbene 1.2.2 Structure and Reactivity of Au(I)/(III)-NHC Complexes Unlike...
Ngày tải lên: 11/09/2015, 09:12
Syntheses and catalysis of transition metal complexes with hemilabile ligands 1
... Chromium(III) [PNP] complexes syntheses and structures 4.3.1.1 Reaction of [PNP] ligand L4d with CrCl3(THF)3 and RCN 71 iv 4.3.1.2 Reaction of reported binuclear Cr(III)-PNP complexes with acetonitrile ... 18 1.4 Complexes with mixed donor hybrid ligands of interest 19 1.4.1 Reported complexes with [P, O] ligands 19 ii 1.4.1.1 Ni complexes 19 1.4.1.2 Pd complexes ... transition-metal complexes with PNP-type ligand are known, including palladium- molybdenum (84), palladium- cobalt (85),49 as well as chromium (86 – 88)51 (Figure 1.21) PNP-Cr(III) complexes 86 –...
Ngày tải lên: 11/09/2015, 10:18
Syntheses and catalysis of transition metal complexes with hemilabile ligands
... catalysts reported are dominated by rhodium-based complexes, 129c,140c,145 palladium( 0)-SbCl3 (cat A),146 palladium- bipyridine (cat B),147 cationic palladium( II) complex (cat C)137g-h and palladacycles ... 1-bromonaphthalene with L1o/Pd2(dba)3 or C11 gives a mononuclear Pd (II) species, {{η-C5H4CH=N[CH3(CH)C10H7]}Fe[η-C5H4P(t-Bu)2]}2Pd(Br)(C10H7), C14, with two iminophosphine ligands with dangling imines ... chromatograph with flame ionisation detector was used with the column being a Phenomenex DB-1, or HP-Innowax 30 m column with an internal diameter of 0.25 mm The carrier gas was helium, with a flow...
Ngày tải lên: 11/09/2015, 10:18
SYNTHESIS, STRUCTURE AND CATALYTIC APPLICATION OF NOVEL CARBENE COMPLEXES WITH BENZOTHIAZOLIN 2 YLIDENE LIGANDS 1
... the Pt (II) ,145-147 Pd (II) ,148-150 Ir(III)151 Ru(III),151 Os(III)152 and Ga(III)153 NNHC -complexes N N BF4 H N BF4 + Pd H3C COD + Pd(0) N 1.69 1.70 Scheme 1.15 Reductive elimination of a Pd (II) -NHC ... them This thesis will deal with binary Pd (II) -NSHC complexes, Pd (II) complexes with NSHC 30 Synthesis, Structure and Catalytic Application of Novel Carbene Complexes with Benzothiazolin-2-ylidene ... Ir(I),96,100,102 Ru (II) ,103-108 Ru(III),106 Cu(I), 85,108-113 Cu (II) ,108,109,111,113 have been prepared This method is particularly useful for preparing carbene complexes with NNHC ligands bearing...
Ngày tải lên: 14/09/2015, 08:43
SYNTHESIS, STRUCTURE AND CATALYTIC APPLICATION OF NOVEL CARBENE COMPLEXES WITH BENZOTHIAZOLIN 2 YLIDENE LIGANDS 2
... successful examples of Pd (II) mixed-NNHC-phosphine complexes However, there is no report of Pd (II) complexes with mixed-NSHC-phosphine ligands In Part II, a series of Pd (II) complexes with mixed benzothiazolin-2-ylidene ... benzothiazolin-2-ylidene in the Pd (II) -NSHC complexes compared to Pd (II) -NNHC Complexes 2.1 and 2.4 show a greater catalytic activity than complexes 2.2(a) and 2.3 The catalytic activities of complexes 2.1 and ... of Pd (II) Complexes of NSHCs with Pendant and Coordinated Allyl Functionality and their Suzuki Coupling Activities A simple pathway to mono- and bis- as well as dinuclear Pd (II) complexes with...
Ngày tải lên: 14/09/2015, 08:43
SYNTHESIS, STRUCTURE AND CATALYTIC APPLICATION OF NOVEL CARBENE COMPLEXES WITH BENZOTHIAZOLIN 2 YLIDENE LIGANDS 3
... 3.34; N, 5.37; S, 5.84 3.2.6 Synthesis of Complexes 2.17-2.21 (Chapter Two, Section 2.7) Diiodo(µ-diiodo)bis(3-isopropylbenzothiazolin-2-ylidene)dipalladium (II) , 2.17 Complex 2.17 was prepared similarly ... Carbene Complexes with Benzothiazolin-2-ylidene Ligands Chapter Three: Experimental Experimental Dibromo[µ-trans-1,2-bis(4-pyridyl)ethylene]bis(3-benzylbenzothiazolin-2ylidene)dipalladium (II) , 2.15(a) ... Novel Carbene Complexes with Benzothiazolin-2-ylidene Ligands Chapter Three: Experimental Experimental Dibromo[µ-1,2-bis(4-pyridyl)ethane]bis(3-benzylbenzothiazolin-2ylidene)dipalladium (II) , 2.16(a)...
Ngày tải lên: 14/09/2015, 08:43