…Russian organic chemist. Born into a family of lower nobility, he studied chemistry at Kazan University under Zinin NN (1812-80) and Klaus KK Klaus (1796-1869), and taught at his alma mater and from 1868 at the University of St. Petersburg. After a business trip to Western Europe in 1857-58, he criticized the chemical theories of the time, and based on Cooper AS Couper (1831-92) and FA Kekulé's new concepts (tetravalency of carbon, carbon-carbon bond, 1858) and his own research on methylene derivatives, he arrived at his theory of chemical structure around 1860 (published in 1861). … From [Ruthenium]…In 1828, the Russian G. W. Osann discovered a new element in platinum ore in the Urals, and named it after the old Russian region of Ruthenia. However, later, it was confirmed to be an impure oxide by another Russian, Karl Karlovich Klaus (1796-1864), and the pure metal was isolated from iridium. Its presence in the earth's crust is small, being found in a few percent of iridium (a naturally occurring alloy of osmium and iridium). … *Some of the terminology that mentions "Klaus, KK" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…ロシアの有機化学者。下級貴族の家に生まれ,カザン大学でジーニンN.N.Zinin(1812‐80)とクラウスK.K.Klaus(1796‐1869)に化学を学び,初め母校で,1868年からはペテルブルグ大学で教えた。1857‐58年の西欧出張後,当時の化学理論を批判し,クーパーA.S.Couper(1831‐92),F.A.ケクレの新概念(炭素の4価性,炭素炭素結合,1858)とみずからのメチレン誘導体研究などから,60年ころ化学構造論に到達した(1861発表)。… 【ルテニウム】より…1828年ロシアのオサンG.W.Osannがウラル地方の白金鉱中から新元素を発見したとして,ロシアの古い地域名Rutheniaにちなんで命名された。しかしこれは後になってやはりロシアのクラウスKarl Karlovich Klaus(1796‐1864)により不純な酸化物であることが確かめられ,イリドスミンから純粋金属が単離された。地殻中の存在量は少なく,イリドスミン(オスミウムとイリジウムの合金で天然に産する)中に数%含まれている。… ※「Klaus,K.K.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
<<: Klaus, MH (English spelling) KlausMH
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