Category: 12150-46-8

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, Computed Properties of C34H28FeP2.

Structure and reactivity relationships in methyl and hydrido complexes of platinum(II) by group 15 donor atom ligands

Square-planar substitution reactions (chlorido for iodide, trans to methyl and hydrido as non-labile ligands) was kinetically investigated in chloroform solution in a series of platinum(II) trans-[PtRCl(L)2] complexes (R = Me: L = PPh3, 1; PPh2Fc, 2; P(NMe2)3, 3; AsPh3, 5; As(4-Me-Ph)3, 6; R = H: L = PPh3, 7) and cis-[PtMeCl(Ph2PFcPPh2)], 4. The reactions follow the normal associative mode of activation, but with equilibria present in all steps, with rate constants for the direct substitution pathway, k12, of (9.1 ¡Á 1.0) ¡Á 10-4, 0, (1.389 ¡Á 0.016)¡Á10-2, (1.51 ¡Á 0.15), (2 ¡Á 4) ¡Á 10-3, (2.79 ¡Á 0.04) ¡Á 10-2 and 0 mol-1 dm3 s-1 at 298 K for 1 to 7 respectively. The corresponding second order rate constants for the solvent assisted pathway, k13?, were also determined. The activation parameters for the direct and solvent assisted pathways for 3 were determined as DeltaH? = 60.4 ¡Á 1.4 and 53.7 ¡Á 0.3 kJ mol-1, and DeltaS? = -78 ¡Á 4 and -142 ¡Á 1 J mol-1 K-1. A significant more than four orders-of-magnitude reactivity range was observed. Crystal structures of trans-[PtMeCl(PPh2Fc)2].2CHCl3.2H2O, trans-[PtMeCl{P(NMe2)3}2], cis-[PtMeCl(Ph2PFcPPh2)].2CHCl3 and trans-[PtHCl(PPh3)2].CH3OH are reported.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Computed Properties of C34H28FeP2. In my other articles, you can also check out more blogs about 12150-46-8

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Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, molecular formula is C34H28FeP2. In a Article£¬once mentioned of 12150-46-8, Application In Synthesis of 1,1-Bis(diphenylphosphino)ferrocene

Synthesis and Characterization of Diiron Thiadithiolate Complexes Related to the Active Site of [FeFe]-Hydrogenases

On the basis of preparation of the known complex [Fe2(mu SCH2)2S(CO)6] (A) by a new method involving condensation of [(mu-LiS)2Fe2(CO)6] with excess S(CH 2Br)2, twelve new diiron thiadithiolates as mimics of the [FeFe]-hydrogenase active site have been synthesized by substitution of the CO ligand and coordination at the central S atom of complex A with appropriate reagents. Treatment of A with 1. equiv. of the monodentate ligands PPh 3 and [(eta5-C5.H5) (eta5-Ph2PC5H4)Fe] in the presence of Me3NO and with 1 equiv.tBuNC and cyclohexyl isocyanide gave the single [2Fe3S]-cluster-containing monosubstituted complexes [Fe2(U-SCH2J2S(CO) 5(L1)] (1, L1 = PPh3; 2, L1 = (eta5-C5H5) (eta5Ph 2PC5H4)Fe; 3, L1 = tBuNC; 4, L 1 = C6H11NC), whereas the double [2Fe3S]cluster-containing disubstituted complexes [(Fe2(mu-SCH 2)2S(CO)5}2(L2)] [5, L2 = 4,4′-(Ph2P)2(C6H 4)2; 6, L2 = trans-Ph2PCH=CHPPh 2; 7, L2 = 1,4-(CN)2C6H4; 8, L2 = (eta5-Ph2PC5H 4)2Fe; 9, L2 = (eta5-Ph 2PC5H4)2Ru] were produced by reaction of A with 0.5 equiv. of the corresponding bidentate ligands in the presence of Me3NO. In addition, the single [2Fe3S]-cluster-containing complexes in which the central S atom is coordinated, [{Fe2(mu- SCH2)2S(CO)6}[(eta5-MeC 5H4)(CO)2Fe}(BF4)] (10), [(Fe 2(mu-SCH2)2S(CO)6 }{Cr(CO) 5}] (11), and [(Fe2(muSCH2) 2S(CO)6}[W(CO)5}] (12), could be obtained by reaction of complex A with the in situ prepared. [((mu5-MeC 5H4)(CO)2Fe)(BF4)], [Cr(CO) 5(thf)], and [W(CO)5;(thf)], respectively. While complex 3 was found to be able to reduce the proton of the weak acid Et3NHCl to give H2, the X-ray crystallographic study confirmed that (i) each P atom of the phosphane ligands in 1 and 8 occupies an apical position at the Fe atoms, (ii) the isocyanide ligand in 3 lies in a basal position of the Fe atom, and (iii) the (eta5MeC5H4)(CO) 2Fe, Cr(CO)5, and W(CO)5 units in 10-12 are linked to the central S atom of complex A by an equatorial bond from the two fused sixmembered rings of their [2Fe3S]-cluster cores.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.Application In Synthesis of 1,1-Bis(diphenylphosphino)ferrocene, you can also check out more blogs about12150-46-8

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Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

In an article, published in an article, once mentioned the application of 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene,molecular formula is C34H28FeP2, is a conventional compound. this article was the specific content is as follows.Application In Synthesis of 1,1-Bis(diphenylphosphino)ferrocene

Synthesis, single crystal X-ray structure determination and NMR studies of Cp2Fe(PPh2)2PtPh2 and Cp2Fe(PPh2)2PtI2

Diphenyl[1,1?-bis(diphenylphosphino)ferrocene]platinum(II), Cp2Fe(PPh2)2PtPh2 (1) and diiodo[1,1?-bis(diphenylphosphino)ferrocene]platinum(II), Cp2Fe(PPh2)2PtI2 (2) were synthesized in nearly quantitative yield, with excellent purity by allowing Cp2Fe(PPh2)2 to react with (COD)PtPh2 and (COD)PtI2 (COD=1,5-cyclooctadiene), respectively. Compounds 1 and 2 have been well characterized by various analytical and spectroscopic techniques and also by single crystal X-ray diffraction. Platinum in both the complexes seemed to have a distorted square planar geometry. Interestingly, the respective bite angles (P-Pt-P bond angle) in 1 (101.2(1) A) and 2 (100.6(1) A) deviate from the ideal 90 situation and are larger than in the reported structure, dppfPtCl2 [dppf=1,1?-bis(diphenylphosphino)ferrocene]. A detailed NMR study, including 2D and simulation experiments has been performed on these compounds for complete structural assignment. The compounds 1 and 2 crystallized in triclinic space groups P1 and P1 with a=12.268(2) A, 10.089 (1); b=13.043(2) A, 10.856 (1); c=13.649(1), 17.787(1) A; alpha=100.49(1), 86.75(1); beta=93.12(1), 77.52(1); gamma=103.44(1), 64.91(1); V=2078.0(5), 1721.3(3) A3 and Z=2 and 2, respectively. The final refinements of 1 and 2 converged at R=0.0388 and 0.0580, respectively.

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Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

Application of 12150-46-8, Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, molecular formula is C34H28FeP2. In a Article£¬once mentioned of 12150-46-8

Vinylidene, vinyl, and carbene ruthenium complexes with chelating diphosphanes as ligands

The ruthenium vinylidenes [RuCl2(=C=CHR) (PR?3)2] (1, 2) react with 1,2-C2H4(PCy2)2 (3) to give the chelate complexes [RuCl2(=C=CHR)(kappa2-3)] (4, 5) by displacement of the two monodentate phosphane ligands. In contrast, the reaction of the hydrido compound [RuHCl(=C=CH2)(PCy3)2] (6) with excess 3 proceeds by migration of the hydride to the Calpha carbon atom of the vinylidene unit and affords the six-coordinate vinyl complex trans-[RuCl(CH=CH2)(kappa2-3)2] (7). Protonation of 7, followed by addition of NH4PF6, yields the cationic ruthenium carbene trans-[RuCl(=CHCH3)(kappa2-3)2] PF6 (8), together with small quantities of the hydrido compound [RuH(kappa2-3)2]PF6 (9). The Grubbs catalyst [RuCl2(=CHPh)(PCy3)2] (10) reacts with both 3 and [Fe(eta5C5H4PPh2)2] (11), also by ligand substitution, to give the corresponding chelate complexes [RuCl2(=CHPh)(kappa2-3)] (12) and [RuCl2(=CHPh)(kappa2-11)] (13); the latter has been characterized by X-ray crystal structure analysis.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 12150-46-8 is helpful to your research., Application of 12150-46-8

Reference£º
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, molecular formula is C34H28FeP2. In a Article£¬once mentioned of 12150-46-8, SDS of cas: 12150-46-8

Kinetics of complex formation between palladium(II) acetate and bis(diphenylphosphino)ferrocene

The kinetics of complex formation between palladium(II) acetate, and 1,1′-bis(diphenylphosphino)ferrocene, dppf, in two different deuterated solvents CDCl3 and DMSO-d6 were investigated using 31P NMR spectroscopy. The mole ratio and the 31P-chemical shifts in DMSO-d6 solution revealed the formation of an intermediate, which is gradually converted into the more stable [Pd(dppf)OAc)2] species with a dppf acting as a chelate ligand. In the chloroform solution however, the interaction of metal ion and the ligand resulted directly in the formation of [Pd(dppf)OAc)2] species with a chelating dppf. The rate constant for the complexation reaction was evaluated from computer fitting of the corresponding integration-time data.

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Reference£º
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

In an article, published in an article, once mentioned the application of 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene,molecular formula is C34H28FeP2, is a conventional compound. this article was the specific content is as follows.Application In Synthesis of 1,1-Bis(diphenylphosphino)ferrocene

Synthetic and solution calorimetric investigations of chelating phosphine ligands in Ru(allyl)2(PP) complexes (PP = diphosphine)

Reaction enthalpies of (COD)Ru(allyl)2 (COD = eta4-1,5-cyclooctadiene; allyl = 2-methylpropenyl) with a series of bidentate phosphines (dppm, dppf, dppe, dppb, dppp, depe, dmpe) have been measured by anaerobic solution calorimetry. The relative stability of the resulting complexes is strongly influenced by the electronic donor properties of the bidentate phosphine ligand. Reactions involving ligands that are better sigma donors result in higher enthalpy values and, therefore, more thermodynamically stable complexes. Additionally, the synthesis and characterization of two new ruthenium allyl complexes Ru(allyl)2(dppf) (3) and Ru(allyl)2(depe) (8) and the X-ray crystal structure of 3 are reported.

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Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

Related Products of 12150-46-8, Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, molecular formula is C34H28FeP2. In a Article£¬once mentioned of 12150-46-8

Synthesis and Chemistry of Dithiadiazole Free Radicals [4-(4′-C5H4N)CN2S2] and [4(3′-5H4N)CN2S2] X-ray crystal structures of Pd3 -SNC(Ar’)NS-S,S’2(PPh3)4] (Ar’=4′-C5H4N,4′-C5H4NBEt3 and 3′-C5H4NBEt3)

Two new 1,2,3,5-dithiadiazoles, [4-(4′-C5H4N)CN2S2] (L1) and [4- (3′-C5H4N)CN2S2] (L2), with different pyridyl groups at the 4-position were prepared. As Lewis bases, the dithiadiazoles reacted with Lewis acids via their pyridyl groups to form acid-base adducts with retention of the five-membered dithiadiazole ring. Ligands L1 and L2 reacted with excess triethylborane to give L1BEt3 and L2BEt3 (1a and 1b) and with Mn(CO)5Br to give the fac-Mn(CO)3Br(L1)2 (2a) and fac-Mn(CO)3Br(L2)2 (2b) complexes. When reacted with Pd0 complexes, namely, Pd(PPh3)4 and a mixture of [Pd2(dba)3] and dppf, the dithiadiazoles underwent ring-opening reaction by reductive cleavage of the S-S bond of the dithiadiazole ring. The resulting formation of Pd-S bonds gave the corresponding trinuclear complexes [Pd3a??I?-SNC (4′-C5H4N)NS-S,S’a??2(PPh3)4] (3a), [Pd3a??I?-SNC(3′- C5H4N)NS-S,S’a??2(PPh3)4] (3b), and [Pd3a??I?-SNC(4′-C5H4N)NS- S,S’a??2(dppf)2] (4) [dba = dibenzylideneacetone, dppf = 1,1′- bis(diphenylphosphanyl)ferrocene]. Complexes 3a and 3b reacted with excess triethylborane to give the corresponding acid-base adducts [Pd3a??I?-SNC(4′- C5H4NBEt3)NS-S,S’a??2(PPh3)4] (5a) and [Pd3a??I?SNC(3′-C5H4NBEt3)NS- S,S’a??2(PPh3)4] (5b.) Complex 3a reacted with Mn(CO)5Br to give a??[Pd3a??I?-SNC(4′-C5H4N)NS-S,S’a??2(PPh3)4][MnBr(CO)3]a??n (6). The structures of 3a, 5a, and 5b were established by X-ray crystallography.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 12150-46-8 is helpful to your research., Related Products of 12150-46-8

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Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

Synthetic Route of 12150-46-8, Chemistry can be defined as the study of matter and the changes it undergoes. You¡¯ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology.12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, molecular formula is C34H28FeP2. In a patent, introducing its new discovery.

REGIO- AND STEREO-CHEMISTRY IN ALLYLATION OF ARYL GRINARD REAGENTS CATALYZED BY PHOSPHINE-NICKEL AND -PALLADIUM COMPLEXES

Nickel and palladium complexes with the 1,1′-bis(diphenylphosphino)ferrocene ligand effectively catalyze regioselective cross-coupling of allylic ethers such as 1- or 3-methyl-2-propenyl silyl ethers with aryl-Grinard reagents, where the nickel catalyst leads to carbon-carbon bond formation at the more substituted posiiton while carbon-carbon bond formation occurs at the less substituted position in the case of the palladium catalyst.Allylation of cis- and trans-5-methyl-2-cyclohexenyl silyl ethers was found to proceed with inversion of configuration with both the nickel and palladium catalysts.The stoichiometric reaction of a (1-methyl-?-allyl)palladium complex with the phenyl-Grinard reagent in the presence of phosphine ligands was also studied.A mechanism involving formation of the ?-allyl(aryl)ML2 intermediate is proposed.

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Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn¡¯t involve a screen. 12150-46-8, C34H28FeP2. A document type is Article, introducing its new discovery., Application In Synthesis of 1,1-Bis(diphenylphosphino)ferrocene

Synthesis and characterisation of organo-platinum(II) complexes of the N,O-donor ligands hippuric acid (N-benzoylglycine) and N-phenylanthranilic acid

Reaction of [PtCl2(cod)] (cod = cyclo-octa-1,5-diene) with either hippuric acid [PhC(O)NHCH2COOH] or N-phenylanthranilic acid (ortho-PhNHC6H4COOH) in refluxing dichloromethane in the presence of silver(I) oxide gave the new organoplatinum derivatives [Pt{N(COPh)CH2COO}(cod)] and [Pt{N(Ph)C6H4COO}(cod)] respectively. Ligand substitution reactions of the cod ligand in [Pt{N(COPh)CH2COO}(cod)] provided a facile route to a selection of phosphine-substituted analogues [Pt{N(COPh)CH2COO}L2] [L = phosphatriazaadamantane (pta), PPh3, or L2 = Ph2PCH2CH2PPh2 or Fe(eta5-C5H4PPh2)2] via displacement of the labile cod ligand. The complexes were characterised using NMR spectroscopy, IR spectroscopy, and ESI mass spectrometry. The X-ray structure of [Pt{N(COPh)CH2COO}(cod)] is also reported.

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Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn¡¯t involve a screen. 12150-46-8, C34H28FeP2. A document type is Article, introducing its new discovery., Recommanded Product: 1,1-Bis(diphenylphosphino)ferrocene

Diastereoselective cyclopalladation of new chiral ferrocenylimines (-)-[(eta5-C5H5)Fe{eta5-C 5H4C(R)=NCH2-(1S,2R,5S)-CHCH2CH 2CHC(CH3)2CHCH2]

Reaction of acylferrocene with (-)-cis-myrtanylamine in benzene gives new chiral ferrocenylimines (-)-[{eta5-C5H4C(R)=NCH 2R*]Fe(eta5-C5H5)] [R = H, (-)-1, or Me, (-)-2; R* = (1S,2R,5S)-CHCH2-CH2CHC(CH3) 2CHCH2]. Asymmetric cyclopalladation of these imines with sodium tetrachloropalladate(II) in methanol gives the di-mu-chloro-bridged dimers (+)-(Sp,Sp)-[Pd{(eta5-C5H 3C(R)=NCH2R*)Fe(eta5-C 5H5)}(mu-Cl)]2. Subsequent treatment of these dimeric complexes with triphenylphosphine, pyridine, and 1,1?-bis(diphenylphosphino)ferrocene (dppf) in acetone yields the corresponding cyclopalladated derivatives (Sp)-[Pd{(eta5-C5H3C(R)=NCH 2R*)Fe(eta5-C5H5)}(PPh 3)Cl], (+)-(Sp)-[Pd{(eta5-C5H 3C(R)=NCH2R*Fe(eta-C5H 5)}(Py)Cl], and (+)-(Sp,Sp)-[PdCl{(eta5-C5H 3C(R)=NCH2R*)Fe(eta5-C 5H5)}(Ph2PC5H4-eta 5)]2Fe, respectively. All compounds have been characterized by NMR, MS, optical rotation, and elemental analysis, and the absolute configuration of two mononuclear complexes, (+)-(Sp)-[Pd{(eta5-C5H 3-CH=NCH2R*)Fe(eta5-C5H 5)}(PPh3)Cl]¡¤1/2C2H5OH and (-)-(Sp-[Pd{eta5-C5H3C(CH 3)=NCH2R*)Fe(eta5-C5H 5)}(PPh3)-Cl], has been determined by single-crystal X-ray analysis.

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Reference£º
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate