Tetrasilane | Wikipedia audio article
Channel: wikipedia tts
Date: 08/12/2018

This is an audio version of the Wikipedia Article:
Tetrasilane


00:01:41 1 Structure classification
00:01:58 2 Isomerism
00:02:59 3 Nomenclature
00:04:45 3.1 Linear silanes
00:05:13 3.2 Branched silanes
00:06:32 4 Physical properties
00:08:14 4.1 Boiling point
00:08:41 4.2 Melting point
00:08:51 4.3 Conductivity and solubility
00:10:05 4.4 Molecular geometry
00:11:23 4.5 Bond lengths and bond angles
00:12:37 5 Chemical properties
00:13:40 6 Production
00:14:33 6.1 Schlesinger
00:15:10 6.2 Laboratory preparation
00:15:49 7 Applications
00:15:58 8 Hazards
00:16:10 9 Subclasses of silane
00:16:22 9.1 Halosilanes
00:17:48 9.2 Organosilanes
00:18:46 10 Heterosilanes
00:19:30 10.1 Organoheterosilanes
00:19:53 11 See also
00:20:32 12 References
00:22:53 undefined
00:23:27 undefined
00:24:18 undefined



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SUMMARY
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Silanes are saturated chemical compounds consisting of one or multiple silicon atoms linked to each other or one or multiple atoms of other chemical elements as the tetrahedral centers of multiple single bonds. By definition, cycles are excluded, so that the silanes comprise a homologous series of inorganic compounds with the general formula SinH2n + 2. Commercially available silanes are synthetically derived.
Each silicon atom has four bonds (either Si–H or Si–Si bonds), and each hydrogen atom is joined to a silicon atom (H–Si bonds). A series of linked silicon atoms is known as the silicon skeleton or silicon backbone. The number of silicon atoms is used to define the size of the silane (e.g., Si2-silane).
Related to silanes, is a homologous series of functional groups, side-chains or radicals with the general formula SinH2n + 2. Examples include silyl and disilanyl.
The simplest possible silane (the parent molecule) is silane, SiH4. There is no limit to the number of silicon atoms that can be linked together, the only limitation being that the molecule is acyclic, is saturated, and is a hydrosilicon.
Silanes are very reactive and have moderate biological activity.
Much of the early work establishing that silicon does indeed form a homologous series of hydride analogous to the alkanes, albeit to a much smaller extent, was conducted by Alfred Stock and Carl Somiesky.  Although monosilane and disilane were already known, Stock and Somiesky discovered, beginning in 1916, the next four members of the SinH2n+2 series, up to n = 6, and they also documented the formation of solid phase polymeric silicon hydrides (see below).  Usually polymeric silanyl hydrides are based on silicone and thus called silicone hydrides (the back bone consists of Si–O–Si bonds).