| 释义 |
tetrakis-|ˈtɛtrəkɪs|
formative element [f. Gr. τετράκις four times] used in Chem. in the names of compounds to signify four identical groups all substituted in the same way; formerly = tetra- 2.
1850[see tri- 5 a]. 1912Jrnl. Chem. Soc. CI. 2003 The product obtained was tetrakisazobenzene, a deep red substance. 1951Kirk & Othmer Encycl. Chem. Technol. VII. 580 Tetrakis(p-dimethylaminophenyl)hydrazine is dissociated to the extent of 10% in benzene solution and 21% in nitrobenzene. 1963A. J. Hall Student's Handbk. Textile Sci. v. 259 The Proban flameproofing process is essentially based on the use of tetrakis-hydroxymethyl⁓phosphonium chloride. 1979G. C. Barrett in D. N. Jones Comprehensive Organic Chem. III. xi. iv. 77 Tetra⁓kis(methylthio)methane, (MeS)4C, undergoes exchange with dithiols. |