Ytterbium(III) Trifluoromethanesulfonate Hydrate CAS 54761-04-5 daahirnimo>98.0% (Titration Chelometric)
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Magaca Kiimikada | Ytterbium(III) Trifluoromethanesulfonate Hydrate |
La mid ah | Trifluoromethanesulfonic Acid Ytterbium(III) Salt Hydrate;Ytterbium(III) Triflate Hydrate |
Lambarka CAS | 54761-04-5 |
Lambarka CAT | RF-PI2097 |
Heerka Saamiyada | Kaydka dhexdiisa, Qiyaasta Waxsoosaarka Ilaa Tan |
Qaanuunka molecular | C3F9O9S3Yb·xH2O |
Miisaanka Molecular | 620.24 |
Xasaasi ah | Hygroscopic |
Summada | Kiimikada Ruifu |
Shayga | Tilmaamaha |
Muuqashada | Budada Cawlan ee Off-White ama Fudud |
Daahirnimada / Habka Falanqaynta | >98.0% (Chelometric Titration) (Calcd. on Walxaha Anhydrous) |
Yb | 26.8 ~ 29.0% (Complexiometric EDTA) |
Biyaha (waxaa qoray Karl Fischer) | ≤4.00% |
Falanqaynta Weyn ee ICP | Waxay xaqiijisaa Qaybta Ytterbium |
Infrared Spectrum | Waafaqsan Qaab-dhismeedka |
Kala-duwanaanta raajada | Waafaqsan Qaab-dhismeedka |
Heerka Imtixaanka | Heerka Ganacsiga |
Xidhmada: Dhalo, bacda bireed aluminium, 25kg / Durbaan kartoonada, ama sida waafaqsan shuruudaha macmiilka
Xaaladda Kaydinta:Ku kaydi weelasha xiran meel qabow oo qallalan;Ka ilaali iftiinka iyo qoyaanka
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Ytterbium (III) Trifluoromethanesulfonate Hydrate (CAS: 54761-04-5) waxay u shaqeysaa sidii kicinta isku dhafka dabiiciga ah ee heterocycles.Sidoo kale waxay u shaqeysaa sidii asiidh Lewis oo ah falcelinno dabiici ah oo kala duwan.Keliya biraha dhifka ah ee dhulka ee isku dhafan ee isku-dhafka dabiiciga ah.Biyo-qaade u adkaysta Lewis acid ayaa dhawaan loo adeegsaday isku-dhafka hal-dhari ee β-lactams, iyo falcelinta isugeynta ee nucleophilic ee la xakameeyey.Waxay katalaystaa isku-dhafka deoxypenostatin A ee sheeko cusub, stereoselective, falcelinta Diels-Alder intramolecular.Kataliye Lewis acid loo isticmaalo silyated chinchona alkaloid ee isku xidhka asymmetric ee β-lactams laga beddelay koloride acid iyo aryl imine.Waxa kale oo loo isticmaalaa in lagu kiciyo falcelinta aldehyde-ene ee isku xidhka qalfoofka guaiane.Qayb muhiim ah oo ka mid ah aashitada Lewis ee kala duwan ee falcelinta synthetic, oo ay ku jiraan allylborations.
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