112243-78-4 Usage
Uses
Used in Catalysis Industry:
Zirconium,dichloro[1,2-ethanediylbis[(1,2,3,3a,7a-h)-1H-inden-1-ylidene]]is used as a catalyst for promoting selectivity in chemical reactions. Its high thermal stability ensures that it can operate effectively under a range of conditions, contributing to the efficiency and specificity of catalytic processes.
Used in Polymerization Industry:
In the polymerization industry, Zirconium,dichloro[1,2-ethanediylbis[(1,2,3,3a,7a-h)-1H-inden-1-ylidene]]is utilized as a catalyst to facilitate the formation of polymers. Its ability to promote selectivity is particularly beneficial in controlling the structure and properties of the resulting polymers, which is crucial for their performance in various applications.
Used in Organic Reactions:
Zirconium,dichloro[1,2-ethanediylbis[(1,2,3,3a,7a-h)-1H-inden-1-ylidene]]is also employed as a catalyst in organic reactions. Its role is to accelerate the reaction rate and improve the yield of desired products, which is essential for the synthesis of complex organic molecules and compounds.
Due to the complex structure and potential reactivity of Zirconium,dichloro[1,2-ethanediylbis[(1,2,3,3a,7a-h)-1H-inden-1-ylidene]]-, it is imperative that it is handled and stored with care to ensure safety and prevent unwanted chemical reactions.
Check Digit Verification of cas no
The CAS Registry Mumber 112243-78-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,2,2,4 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 112243-78:
(8*1)+(7*1)+(6*2)+(5*2)+(4*4)+(3*3)+(2*7)+(1*8)=84
84 % 10 = 4
So 112243-78-4 is a valid CAS Registry Number.
112243-78-4Relevant academic research and scientific papers
Enantioselective synthesis of ansa-zirconocenes
LoCoco, Matthew D.,Jordan, Richard F.
, p. 13918 - 13919 (2007/10/03)
The reaction of the chiral chelated bis-amide complex Zr{(2R,4R)-PhNCHMeCH2CHMeNPh}Cl2(THF)2 (R,R-7) with lithium ansa-bis-indenyl reagents Li2[SBI](Et2O) (8a, SBI = (1-indenyl)2SiMe2
Electronic effects in Ziegler-Natta polymerization of propylene and ethylene using soluble metallocene catalysts
Lee, Ik-Mo,Gauthier, William J.,Ball, JoAnne M.,Iyengar, Bhagavathi,Collins, Scott
, p. 2115 - 2122 (2008/10/08)
The polymerization of ethylene was studied by using a series of (η5-5,6-X2C9H5) 2ZrCl2 catalysts (4a, X = H; 4b, X = CH3; 4d, X = OCH3; 4e, X = Cl), and the polymerization of propylene and ethylene was studied by using a number of the corresponding racemic, ethylene-bridged analogues (5a, X = H; 5b, X = CH3; 5d, X = OCH3). The presence of electron-withdrawing substituents on the indenyl ring in catalysts 4a-e led to a decrease in catalytic activity for ethylene polymerization and a decrease in polymer molecular weights. Ethylene-bridged catalysts produced lower molecular weight polyethylene than their unbridged counterparts but possessed similar activities toward ethylene. Similar trends in catalytic activity toward propylene were observed by using the ethylene-bridged catalysts, but the molecular weight of polypropylene was not as sensitive to changes in electron density at the metal center. Surprisingly, the stereoselectivity of propylene insertion was sensitive to electronic effects; an increase in electron density at the metal center led to a decrease in the stereoselectivity of propylene insertion.
