1449077-17-1

Basic information

• Product Name: dodecamethyl-4-(trimethylsilyl)-1-(dimethylphenylsilyl)bicyclo[2.2.2]octasilane
• CAS NO: 1449077-17-1
• Molecular Weight: 613.553
• Mol File: 1449077-17-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: dodecamethyl-4-(trimethylsilyl)-1-(dimethylphenylsilyl)bicyclo[2.2.2]octasilane(CAS DataBase Reference)
• NIST Chemistry Reference: dodecamethyl-4-(trimethylsilyl)-1-(dimethylphenylsilyl)bicyclo[2.2.2]octasilane(1449077-17-1)
• EPA Substance Registry System: dodecamethyl-4-(trimethylsilyl)-1-(dimethylphenylsilyl)bicyclo[2.2.2]octasilane(1449077-17-1)

Safety Data

• Hazardous Substances Data: 1449077-17-1(Hazardous Substances Data)

Upstream product

• 1449077-33-1 C₁₅H₄₅KSi₉ 
• 768-33-2 phenyldimethylsilyl chloride 
• 79769-61-2 1,4-bis(trimethylsilyl)dodecamethylbicyclo[2.2.2]octasilane 

Relevant articles and documents

Synthesis and properties of bridgehead-functionalized permethylbicyclo[2.2. 2]octasilanes

A series of previously unknown bridgehead-functionalized bicyclo[2.2.2]octasilanes, Me3Si-Si8Me12-X, X-Si8Me12-X, and X-Si8Me12-Y [X, Y = -SiMenPh3-n (n = 1, 2) (2, 3, 10), -SiMe2Fc (Fc = ferrocenyl) (4, 11, 13, 14), -COR (R = Me, tBu) (6, 7, 12), COOMe (8), COOH (9)], have been prepared by the reaction of the silanides Me 3Si-Si8Me12-K+ or K +-Si8Me12-K+ with proper electrophiles and fully characterized. The molecular structures of 2, 3, 4, 6, 8, 9, 10, and 13 as determined by single-crystal X-ray diffraction analysis exhibit a slightly twisted structure of the bicyclooctasilane cage. Endocyclic bond lengths, bond angles, and dihedral angles are not influenced considerably by the substituents attached to the bridgehead silicon atoms. Due to σ(SiSi)/π(aryl) conjugation, a 20-30 nm bathochromic shift of the longest wavelength UV absorption band relative to Me3Si-Si 8Me12-SiMe3 (1) is evident in the UV absorption spectra of the phenyl and ferrocenyl derivatives. Otherwise, UV absorption data do not support the assumption of aryl/aryl or aryl/C=O interaction via the σ(SiSi) bicyclooctasilane framework.