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单词 Thiol group
释义

Thiol group

英语例句库

Dithiooxamide molecules were adsorbed on the metal surface through the amine and thiol groups.

二硫代乙二酰胺分子通过其氨基和巯基共同吸附于金属表面。

The sulfhydryl (thiol) group (SH) of cysteine is responsible for the chemical properties of the whole GSH molecule (L-gamma-glutamyl-Lcysteinylglycine).

半胱氨酸所带有的硫氢基(硫醇)决定了整个谷胱甘肽分子的化学性质。

Both the filtrate and the dialyzate of agave pollen can activate the enzyme, thus proving that there was activating substance of the thiol group in agave pollen.

无论是剑麻花粉的滤液还是透析液,都能使剑麻蛋白酶激活,证实剑麻花粉中含有巯基激活物质。

中文百科

硫醇 Thiol

(重定向自Thiol group)
硫醇的结构通式。蓝色表示的是巯基。
Ácido 2,3 mercapto-pentanodioico
The catalytic cycle for ribonucleotide reductase, demonstrating the role of thiyl radicals in producing the genetic machinery of life.

硫醇是包含巯基官能团(-SH)的一类非芳香化合物。是一类有机硫化合物。可以看成醇中的氧被硫替换

硫醇中,硫原子为不等性sp杂化态,两个单电子占据的sp杂化轨道分别与烃基碳和氢形成σ键,还有两对孤对电子占据另外的两个sp杂化轨道。由于硫的3s和3p轨道形成的杂化轨道比氧的2s和2p轨道形成的杂化轨道大,故C-S和S-H键分别比C-O和O-H键长。在甲硫醇中C-S和S-H键键长分别为0.182 nm和0.134 nm,都比甲醇中的C-O和O-H键长大。∠CSH则为96°,小于∠COH。

硫的电负性比氧小,所以硫醇的偶极矩也比相应的醇小。

英语百科

Thiol 硫醇

(重定向自Thiol group)
The catalytic cycle for ribonucleotide reductase, demonstrating the role of thiyl radicals in producing the genetic machinery of life.
硫醇的结构通式。蓝色表示的是巯基。
Ácido 2,3 mercapto-pentanodioico

In organic chemistry, a thiol (/ˈθɔːl/, /ˈθɒl/) is an organosulfur compound that contains a carbon-bonded sulfhydryl or sulphydryl (–C–SH or R–SH) group (where R represents an alkyl or other organic substituent). Thiols are the sulfur analogue of alcohols (that is, sulfur takes the place of oxygen in the hydroxyl group of an alcohol), and the word is a portmanteau of "thion" + "alcohol," with the first word deriving from Greek θεῖον (theion) = "sulfur". The –SH functional group itself is referred to as either a thiol group or a sulfhydryl group.

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更新时间:2025/6/20 10:40:44