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chapter1-kh PP - What is Organic Chemistry Living things...

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5/31/2011 1 1. Structure and Bonding Based on McMurry’s Organic Chemistry , 7 th edition (Modified by KEH, 2008) What is Organic Chemistry? Living things are made of organic chemicals Proteins that make up hair & muscles DNA - controls genetic make-up Foods medicines 2 Foods, medicines Example structures below Origins of Organic Chemistry Foundations of organic chemistry from mid-1700’s. Compounds obtained from plants, animals hard to isolate, and purify. 3 Compounds also decomposed more easily. Torben Bergman (1770) first to make distinction between organic and inorganic chemistry. Organic chemistry is study of carbon compounds. • Why is carbon so special? - 99% of more than 30 million known chemical d t i b ! Current Definition of Organic Chemistry 4 compounds contain carbon! - Examination of carbon in periodic chart answers some of these questions. - Carbon is group 4A element, it can share 4 valence electrons and form 4 covalent bonds. - Carbon also can form strong bonds to more than a couple of other atoms of C
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