ppt 1 Flashcards
the study of compounds that contain the
element carbon
Organic chemistry
some common products of organic chemistry used in medicine
oral contraceptives
plastic syringes
antibiotics
synthetic heart valves
ORGANIC COMPOUNDS
Formerly considered as compounds that are ___________
Formerly considered as compounds that are ___________
- derived from living things
- impossible to synthesize
who produced urea — a compound known to be excreted by mammals — by
heating ammonium cyanate, an inorganic mineral.
Friedrich Wöhler
structure of ammonium cynate (inorganic mineral)
NH4OCN
structure of urea (organic compound)
NH2CONH2
PROPERTIES OF ORGANIC COMPOUNDS
1.) All organic compounds contain carbon atoms and most contain hydrogen atoms. Exceptions: carbonate, carbide, CO, CO2, cyanide, thiocyanate
2.) Carbon forms single, double, and triple bonds to other carbon atoms. Catenation: the linkage of atoms of the same element into longer chains.
3.) Some compounds have chains of atoms and some compounds have rings.
4.) Organic compounds may also contain elements other than carbon and hydrogen. Any atom that is not carbon or hydrogen is called a heteroatom. The most common heteroatoms are nitrogen, halogens (F, Cl, Br, and I).
the linkage of atoms of the same element into longer chains
Catenation
Any atom that is not carbon or hydrogen
is called a
heteroatom
(F, Cl, Br, I)
Nitrogen & Oxygen
WHY ARE THERE MANY ORGANIC
COMPOUNDS?
Carbon forms four strong bonds with itself and other elements.
Carbon atoms combine together to form rings and chains.
bonding within molecules
organic & inorganic compounds
covalent, often ionic
forces between molecules
organic & inorganic compounds
generally weak, quite strong
normal physical state
organic & inorganic compounds
gases, liquids, or low-melting point solids
usually high melting point solids
flammability
organic & inorganic compounds
often flammable, usually non-flammable
solubility in water
organic & inorganic compounds
often low, often high
conductivity of water solutions
organic & inorganic compounds
nonconductor, conductor
rate of chemical reactions
organic & inorganic compounds
usually low, usually fast
an atom or group of atoms with characteristic chemical and physical properties
functional group
contains a heteroatom, a multiple bond, or sometimes both
functional group
provides structure
carbon frame
imparts reactivity
functional group
3 types of functional groups
hydrocarbons
compounds with a single bond to a heteroatom
compounds with a C=O atom (carbonyl group)
have only C-C bonds and no functional group
alkanes (ethane)
have only C-C double bonds as their functional group
alkenes (ethylene)
have only C-C triple bonds as their functional group
alkynes (ethyne or acetylene)
contain a benzene ring, a six-membered ring with three double bonds
aromatic hydrocarbons
All organic compounds contain carbon atoms and most contain
hydrogen atoms. Carbon always forms four covalent bonds, and
hydrogen forms one covalent bond.
What are the exceptions?
Carbonate, carbide, CO, CO2, cyanide, thiocyanate