Tetrakis (Tripyenylphosphine) Palladium, nrog cov tshuaj noj tshuaj lom neeg PD [p (C6h5) 3] 4, Cas {{}, feem ntau yog cov tshuaj lom neeg uas muaj ntau cov tshuaj lom neeg hauv catalysis. Nyob rau hauv qhov kub thiab txias thiab lub siab, nws feem ntau yog xim daj lossis daj ua kom daj lossis daj nrog ib qho luster. Cov xim no yog vim qhov tshwj xeeb hluav taws xob tsim los ntawm palladum atoms nyob rau hauv nws cov qauv molecular nrog plaub teev tsaus ntuj ligands. Nws cov duab yuav sib txawv raws li kev npaj ua haujlwm thiab chaw khaws khoom, qee zaum nws yuav tshwm sim los ntawm cov hmoov zoo, thiab qee zaum nws yuav tsim cov khoom siv kom loj dua. Nws yog qhov nyuaj rau yaj hauv dej thiab ether cov kuab tshuaj, trochloromethans (DICHLOROFETHANIDE, thiab Chloroform, thaum nws soluberity, thaum nws solubility hauv cov kuab tshuaj xws li Acetone, TetraYdrofuran, thiab acetonitrile yog me me. Qhov sib txawv no ua rau tetratriphenylphosphine palladum muaj dav thov cov kev cia siab hauv cov synthic thiab catalytic cov tshuaj tiv thaiv.
|
|
|
|
Tshuaj Cov Qauv |
C72h60p4pd |
|
Muaj pes tsawg leej |
1154 |
|
Molecular hnyav |
1156 |
|
m/z |
1154 (100.0%), 1156 (96.8%), 1153 (81.7%), 1155 (77.9%), 1157 (75.4%), 1154 (63.6%), 1158 (42.9%), 1152 (40.8%), 1159 (33.4%), 1153 (31.7%), 1156 (29.9%), 1158 (28.9%), 1155 (24.4%), 1160 (12.8%), 1154 (12.2%), 1157 (6.7%), 1159 (6.5%), 1156 (5.5%), 1150 (3.7%), 1151 (2.9%), 1161 (2.9%), 1155 (2.7%), 1158 (1.4%), 1160 (1.4%), 1157 (1.1%), 1152 (1.1%) |
|
Kev Ntsuam Xyuas |
C, 74.84; H, 5.23; P, 10.72; Pd, 9.21 |
Tetrakis (Tripyenylphosphine) Palladium, nrog cov tshuaj noj tshuaj lom neeg PD [p (C6h5) 3] 4, yog ib qho kev siv hluav taws xob tseem ceeb nrog cov tshuaj synthes organic thiab catalysic. Hauv qab no yog cov ntsiab lus ntxaws ntxaws ntawm txhua qhov kev siv ntawm tetratriphenylphosphine palladum:
Daim Ntawv Thov Hauv Cov Khoom Siv Hluav Taws Xob
Ua lub luag haujlwm tseem ceeb hauv kev siv tshuaj synthesis. Ntau cov tshuaj molecules muaj cov carbon carbon carbon pab pawg thiab pab pawg ua haujlwm, uas tuaj yeem tsim kho los ntawm cov tshuaj tiv thaiv catalyzed los ntawm cov tshuaj. Piv txwv li, nws tau pom zoo catalytic kev ua haujlwm thiab xaiv cov tshuaj tiv thaiv tshuaj, tshuaj tiv thaiv tshuaj, cov tshuaj tua kab, thiab lwm thaj teb. Ib qho ntxiv, nws kuj tseem tuaj yeem siv tau los siv cov tshuaj nruab nrab, muab cov ntaub ntawv raw tseem ceeb thiab cov cuab yeej siv tshuaj squthesis.
Daim Ntawv Thov hauv Cov Khoom Siv Kev Tshawb Fawb
Nws tseem muaj ntau cov ntawv thov hauv cov ntaub ntawv txuj ci. Nws tuaj yeem siv los ua catalyst tau koom nrog synthesis thiab kev hloov kho cov ntaub ntawv polymer, txhim kho lawv cov kev ua tau zoo thiab kev ua tiav. Piv txwv li, nws tau pom zoo catalytic kev ua thiab xaiv nyob rau hauv cov synthesis ntawm cannerses polymers, thiab lwm thaj teb. Tsis tas li ntawd, nws kuj tseem tuaj yeem siv los ua synthesize cov ntaub ntawv tshiab xws li cov ntaub ntawv organic thiab cov tswv yim thiab cov tswv yim tshiab thiab cov tswv yim rau kev txhim kho cov ntaub ntawv kev tshawb fawb.
Daim Ntawv Thov Hauv Kev Tshawb Fawb Chemistry
Nws tseem muaj cov ntawv thov hauv kev ntsuas tshuaj chemisterical. Piv txwv li, nws tuaj yeem siv ua qhov ntsuas rau kev soj ntsuam thiab tshuaj xyuas qee qhov kev tawm tsam qee yam. Los ntawm kev saib xyuas cov kev hloov pauv hauv cov xim lossis fluorescence cov khoom lag luam thaum cov txheej txheem ntawm cov tshuaj tiv thaiv tuaj yeem txiav txim siab. Ib qho ntxiv, nws kuj tseem tuaj yeem siv rau kev kuaj thiab sib cais ntawm qee cov hlau ions, muab cov cuab yeej import thiab cov hau kev rau kev ntsuas kev ntsuas.
Tetrakis (Tripyenylphosphine) Palladium, raws li qhov kev hloov pauv ntawm cov khoom siv hlau tseem ceeb, siv tau ntau yam kev sib raug zoo, thiab nws tuaj yeem ua rau muaj kev cuam tshuam ntau, thiab nws tuaj yeem ua rau muaj kev cuam tshuam ntau, thiab nws tuaj yeem ua rau muaj kev cuam tshuam ntau, thiab nws tuaj yeem ua rau muaj kev cuam tshuam ntau, thiab nws tuaj yeem ua rau muaj kev cuam tshuam ntau, thiab nws tuaj yeem tshwm sim nyob rau hauv kev nqis tes ua ntawm catalysts.
Catalytic tsim ntawm cov roj carbon carbon monoxide
Pd (PPH3) 4 yog ib qho tseem ceeb heev siv rau catalyzing Couplings (tus qauv tseem ceeb rau kev tsim cov pa roj carbon banalytic. Piv txwv li, hauv qab kev ua ke ntawm PD (PPH3) 4 thiab AG2O, PPHOLBBAND Lydrocons, nrog rau cov qoob loo ntawm 90% (cov mis). Tshwj tsis yog benzene
Ntxiv nrog rau boric acid thiab halogenated sib txuas, cov tshuaj ntsuab magnes, Zinc Reegents, silicon tebchaw, thiab lwm yam.
Nyob rau hauv lub catalysis ntawm pd (pph3) 4, halogenated arromatic hydrocarbons tuaj yeem ua cov tshuaj tsw qab los ua cov tshuaj tiv thaiv kab mob) (mis).
Pd (PPH3) 4 kuj tseem catupling ntawm txuas ntawm Alkyne cov tebchaw nrog halogenated tebchaw (Sonogashira cov tshuaj tiv thaiv). Thaum lub sij hawm cov tshuaj tiv thaiv, alkyne hydrogen reacts nrog halogen halemes los tsim cov hauv hydrogen ntau (lossis nruab nrab nrog cov derivatives ntawm alkynes (mis 3).
Lub caij no, nyob rau hauv lub catalysis ntawm Pd (Pph3) 4, tus chij rau cov xim halogen suav, thiab lwm yam. Txhawm rau tshem tawm ib qho malecule ntawm hydrogen halide lossis daim ntawv Alkane thiab daim CC Bond (Mis 4).
Tsis tas li ntawd, raws li PD (PPH3) 4 tuaj yeem ua kom haum qhov kev tsim ntawm ntau cov chaw ua ke, xws li sib xyaw ua ke sib xyaw (kab zauv 5).
Catalytic tsim ntawm Cx Bonds
Pd (PPH3) 4 Tsis tuaj yeem tsuas yog ua rau muaj cov xwm txheej ntawm CC Bonds, tab sis kuj yog siv los tsim cov pa roj teeb thiab heteroatoms
Kev sib cav sib ceg ntawm N, S, O, SN, si, SE, thiab lwm yam tuaj yeem ua rau muaj CN (PPH3) 4 CLULA 5).
Lwm yam kev tawm tsam
Qee qhov kev tawm tsam nquag siv tau siv PD (PPH3) 4 li catalyst [15,16]. Tshwj xeeb tshaj yog thaum cov tshuaj tua tsiaj muaj ntau yam muaj cov pob tw benzene, cov qoob loo ntau tuaj yeem tau txais. Piv txwv li, hauv qab catalysis ntawm Pd (PPH3) 4, molecules tau yauv mus rau cov chaw sib txuas lus uas muaj cov ntawv alkyne thiab alkene 7).
Tetrakis (Tripyenylphosphine) Palladium, nrog cov tshuaj noj tshuaj lom neeg PD [p (C6h5) 3] 4, kuj muaj ib qho tseem ceeb ocegentallic compound uas plays lub luag haujlwm tseem ceeb ua ib qho catalyst hauv synthests. Cov hauv qab no yog cov lus qhia ntxaws ntxaws rau nws txoj kev tsim qauv peb-seem.
Nws cov qauv molecular muaj qib siab ntawm symmetry. Qhov tseem ceeb tshaj plaws yog xoom Valent palladum nruab ib puag ncig los ntawm plaub qhov kev mus nkaum tom tshav puam (PPH3) Ligands. No plaub palts yog teem rau hauv tetrawsedral geometry nyob ib ncig ntawm palladum nyob ib ncig ntawm palladum ib ncig ntawm palladum atom, sib sau plaub txoj kev sib koom tes uas conforms rau 18 txoj cai hauv tshuab hluav taws xob. Cov qauv chaw no tso palladum atoms ntawm tetraedral Center tsim los ntawm plaub txoj kev sib txig p atoms, ua kom muaj kev ruaj khov thiab ua kom muaj kev cuam tshuam ntawm lub molecule.
Txhua lub tebchaws nyob ib puag ncig yog cov organic sib xyaw ua ke muaj cov phosphorus, nrog ib lub phosphorus atom thiab peb lub benzene rings. Phosphorus atoms tau txuas nrog palladum atoms los ntawm kev sib cav sib ceg, thaum lub sijhawm benzene atoms los ntawm Sigma Bonds. Tus qauv no xaus rau Tripyenyfphosphine nigands nrog cov teebmeem tseem ceeb thiab cov khoom siv hluav taws xob zoo, uas pab ua rau lawv cov haujlwm hauv cov tshuaj lom neeg.
Txawm hais tias cov qauv theem pib yog Tetrahedron, cov sib xyaw ua ke yuav nthuav qhia qee qhov kev ua yeeb yam vim yog cov teebmeem hauv lub cev. Qhov no heterogeneity tsuas yog los ntawm kev txheeb ze thiab kev npaj ntawm ligands ib ncig ntawm palladum atoms. Txawm li cas los xij, qhov no heterogeneity feem ntau muaj qhov cuam tshuam me me ntawm kev ua haujlwm catalytic yog ib txwm nyob rau hauv lub chaw sib xyaw ua ke ntawm Tetraledra, thiab cov khoom siv hluav taws xob ib txwm muaj ntawm plaub ceg tawv sib luag.
Hauv kev daws, ib lossis ntau dua Tripherylphose Ligands tuaj yeem thim rov qab los ua kom sib haum xeeb cov tshuaj lom zem rau cov tshuaj lom neeg vim tias lawv muaj feem ntau yuav cuam tshuam nrog substrates. Ib qho ntxiv, kev phiv tshuaj catalytic kuj tuaj yeem yauv ua cov txheej txheem xws li oxidation ntxiv thiab txo kev tshem tawm kom ua tiav catalytic cycling.
Tetrakis (Tripyenylphosphine) Palladium, Hais tias yog pph3) ₄, yog ib qho ntawm cov kev hloov pauv tshiab, yog ib qho ntawm cov kev hloov pauv ntawm cov nroj tsuag catalytic, thiab cov carbon heterankom bond tsim. Xyoo 1893, Swiss Chickist Werner tau thov kev sib koom tes sib txuas lus ntawm cov tsev sib koom tes ntawm cov chaw ua haujlwm rau kev ua kom lub hauv paus rau kev hloov cov hlau nyuaj. Werner txoj haujlwm piav qhia yog vim li cas qee yam hlau (xws li co, PT, PT, PD) tuaj yeem ruaj khov cov nyom nrog ntau qhov nruab nrab lossis anionic ligands. Thaum ntxov 2 0}}}}}}}}}}}}}}}}}}}}}}}}}, Tshawb nrhiav ntawm cov tshuaj lom neeg ntawm Palladium (PD) lag luam tom qab ntawd platinum (PT). Thaum xyoo 1930, chietiet chemist ilya ChernyaV Systematically kawm ntawm cov planar quarted nrog amines thiab hatide ions ua rau muaj kev ruaj ntseg tshwj xeeb. Xyoo 1948, British Chemist Joseph Chat tau tshaj tawm tias lub hav zoov ntawm pd (0) sib xyaw ua ke, tab sis tsis muaj peev xwm cais cov qauv hauv lub sijhawm ntawd. Thaum xyoo 1950, Geoffrey Wilkinson pab pawg ntawm Imperial College Ligon (PPH3) raws li Universal Ligon (PCH3) raws li lub peev xwm los tsim cov khoom sib pauv uas muaj ntau txoj kev hloov pauv. Xyoo 1961, Wilkinson ntse synthesized rh (pph α) α) catalyst), zoo heev txhawb kev txhim kho ntawm phosphine ligand chemistry.
Cim npe nrov: Tetrakis (Tripyenylphosphine) palladium CAS 14221-01-3, cov chaw muag khoom, chaw tsim khoom, chaw tsim khoom, yuav khoom, rau muag