Cas 315245-79-5,[(C5H4Si(CH3)3)2Nb(CO)2](1+)*[HB(C6F5)3](1-)=[(C5H4Si(CH3)3)2Nb(CO)2][HB(C6F5)3]

315245-79-5

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Product Name: [(C₅H₄Si(CH₃)3)2Nb(CO)2]⁽¹⁺⁾*[HB(C₆F₅)3]^(1-)=[(C₅H₄Si(CH₃)3)2Nb(CO)2][HB(C₆F₅)3]
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CAS NO:315245-79-5
Molecular Formula:
Molecular Weight: 936.474
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CAS DataBase Reference: [(C₅H₄Si(CH₃)3)2Nb(CO)2]⁽¹⁺⁾*[HB(C₆F₅)3]^(1-)=[(C₅H₄Si(CH₃)3)2Nb(CO)2][HB(C₆F₅)3](CAS DataBase Reference)
NIST Chemistry Reference: [(C₅H₄Si(CH₃)3)2Nb(CO)2]⁽¹⁺⁾*[HB(C₆F₅)3]^(1-)=[(C₅H₄Si(CH₃)3)2Nb(CO)2][HB(C₆F₅)3](315245-79-5)
EPA Substance Registry System: [(C₅H₄Si(CH₃)3)2Nb(CO)2]⁽¹⁺⁾*[HB(C₆F₅)3]^(1-)=[(C₅H₄Si(CH₃)3)2Nb(CO)2][HB(C₆F₅)3](315245-79-5)

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Hazardous Substances Data: 315245-79-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 315245-79-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,5,2,4 and 5 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 315245-79:
(8*3)+(7*1)+(6*5)+(5*2)+(4*4)+(3*5)+(2*7)+(1*9)=125
125 % 10 = 5
So 315245-79-5 is a valid CAS Registry Number.

315245-79-5Upstream product

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315245-79-5Relevant academic research and scientific papers

Studies on the reactivity of Nb(η5-C5H4SiMe3) 2(X)(L), X = H,Cl; L = CNXylyl, CNCy, CO and Nb(η5-C5H4SiMe3) 2(H)3 complexes toward the Lewis acids B(C6F5)3 and BF3

Anti?olo, Antonio,Carrillo-Hermosilla, Fernando,Fernández-Baeza, Juan,García-Yuste, Santiago,Otero, Antonio,Sánchez-Prada, Javier,Villase?or, Elena

, p. 123 - 129 (2000)

The reaction of the electron-rich, coordinatively saturated, niobocene-hydride or -halide complexes Nb(η5-C5H4SiMe3) 2(X)(L), X = H or Cl, L = 2,6-dimethylphenylisocyanide (CNXylyl), cyclohexylisocyanide (CNCy) and carbonyl (CO), with the strong Lewis acid (B(C6F5)3) gives the zwitterionic compounds [(η5-C5H4SiMe3) 2(CNXylyl)Nb(μ-X)(B(C6F5)3)] (1), [(η5-C5H4SiMe3) 2(CNCy)Nb(μ-X)(B(C6F5)3)] (2), [(η5-C5H4SiMe3) 2(CO)Nb(μ-X) (B(C6F5)3)] (3), respectively, where the complexes possess a bridging hydride or halide group. Similarly, the starting niobocene-hydride species react with BF3 to afford the corresponding zwitterionic complexes containing a bridging hydride ligand, namely [(η5-C5H4SiMe3) 2(CNXylyl)Nb(μ-H)(BF3)] (4), [(η5-C5H4SiMe3) 2(CNCy)Nb(μ-H)(BF3)] (5), [(η5-C5H4SiMe3) 2(CO)Nb(μ-H)(BF3)] (6). The reaction of the hydride containing compounds 1-3 with the appropriate ligand L (1:1 molar ratio for 1 and 2) in toluene at room temperature leads to the ionic compounds [(η5-C5H4SiMe3) 2Nb(CNXylyl)2][(HB(C6F5) 3)] (7), [(η5-C5H4SiMe3) 2Nb(CNCy)2][(HB(C6F5)3)] (8), and [(η5-C5H4SiMe3) 2Nb(CO)2][(HB(C6F5)3)] (9), which contain two coordinated L ligands and a noncoordinated [(HB(C6F5)3)]- counteranion. Analogous complexes were not observed in the same reaction for 4-6. Finally, the compound [Nb(η5-C5H4SiMe3) 2(H)3] reacts in acetone with (B(C6F5)3) in a clean reaction to give the ionic compound [(η5-C5H4SiMe3) 2Nb][((CH3)2CHO)B(C6F 5)3)] (10), which contains the isopropoxide borate ion [((CH3)2CHO)B(C6F5) 3)]- as the counteranion.

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