Organic chemistry is a branch of chemistry that studies the structure, properties and reactions of organic compounds, which contain carbon in covalent bonding. Study of structure determines their chemical composition and formula. Study of properties includes physical and chemical properties, and evaluation of chemical reactivity to understand their behavior. The study of organic reactions includes the chemical synthesis of natural products, drugs, and polymers, and study of individual organic molecules in the laboratory and via theoretical (in silico) study.
The range of chemicals studied in organic chemistry includes hydrocarbons (compounds containing only carbon and hydrogen) as well as compounds based on carbon, but also containing other elements, especially oxygen, nitrogen, sulfur, phosphorus (included in many biochemicals) and the halogens. Organometallic chemistry is the study of compounds containing carbon–metal bonds.
In addition, contemporary research focuses on organic chemistry involving other organometallics including the lanthanides, but especially the transition metals zinc, copper, palladium, nickel, cobalt, titanium and chromium.
Organic compounds form the basis of all earthly life and constitute the majority of known chemicals. The bonding patterns of carbon, with its valence of four—formal single, double, and triple bonds, plus structures with delocalized electrons—make the array of organic compounds structurally diverse, and their range of applications enormous. They form the basis of, or are constituents of, many commercial products including pharmaceuticals; petrochemicals and agrichemicals, and products made from them including lubricants, solvents; plastics; fuels and explosives. The study of organic chemistry overlaps organometallic chemistry and biochemistry, but also with medicinal chemistry, polymer chemistry, and materials science.
I have a lab question that I'm stuck on.
For your assigned molecule evaluate the energy barrriers to the rotation:
from anti to gauche
from gauche to gauche
from gauche to anti
I have data/graph of steric energy vs. dihedral angle of 1-chloropropane, but I don't know how to use...
I was working on my chem lab, this question occurred to me. Water and dichloromethane are both polar molecule. However, dichloromethane is able to mix with alcohols much better than water. Is there a polarity difference that caused the miscibility to be different?
I just learned octane numbers in organic chemistry a few days ago, and I'm extremely confused about it. From what I understand, the octane number indicates resistance of a motor fuel to knock, and "knock" is the tendency for the fuel to detonate before hit by spark. Is there an easier way to...
Homework Statement
Are these two structures resonance?
if not why not?
Homework Equations
The Attempt at a Solution
I drew these resonance forms myself, but the answer book didnt' have this resonance structure in its answer and i wanted to know if this indeed is a...
[SOLVED] Organic Chemistry
Which about benzene is true?
1. It has alternating single bonds and double bonds.
2. All C-C bonds are of the same length.
3. It is more stable than a hypothetical cyclohexatriene.
4 1 and 3
5. 2 and 3
I said 5, but it also has alternating...
[SOLVED] Organic Chem - Resonance Structures #2
Homework Statement
Trying to figure out this resonance structure...Draw the lowest energy alternative..
http://img162.imageshack.us/my.php?image=553562cu7.jpg
The Attempt at a Solution
ive been trying to move the upper double bond...
Hi everyone (me again),
I am currently in my first year Chemistry course, s its really general in the sense that we are covering broadly about every topic in Chemistry (except for the specialized ones). Now we just started organic chemistry and I noticed not a lot of math is involved, so I...
http://img176.imagevenue.com/img.php?image=24632_help-please_122_195lo.JPG"
How is the hybridization on B (a nitrogen atom - refer to pic) sp3? I only see 2 bonds? how else can i complete an octet? Could someone explain the answers to me please..i have a day remaining before my exam..im...
i really liked Gen. Chem b/c it involved calculations and i miss that, what's the next Chem course I can take that is heavy in Math in Chem?
also, i understand and know most of the things that is expected from a 1st yr Organic student, it's just not that appealing to me.
The question/direction is to: "Draw the structure of the following compound!"
2-methyl-4-(1-methylethyl)octane
I tired several different ways of constructing this compound but the online homework program ACE Organic says that:
I don't know what to do or what I am missing. If anyone can...
I feel like everyone is at the organic party but me :(
I just finished my first organic chemistry exam and I'm so frustrated. I really enjoy it up until the test. Anyways, I've been confused about acid and base molecules since chem1 and chem2. Never really got it. How can I determine that one...
Hi.
In my chemistry book, one of the questions was to name the given organic molecule. What was given was a benzene ring with a single -OH functional group attached. Immediately, i recognized it as phenol, but i also said its conventional name was benzenol.
When i turned to the answers...
Hi everyone,
I bought the book online, so now I'm waiting for its delivering. But I have to submit the homework assignments for credit. Could anybody who have the Organic Chemistry of Bruice 5th edition, please post the question of these problems for me? Thank you soooooooooooooo much ...
to whom may read this,
i was desperately looking for a chemistry computer program which allows me to draw organic molecules, methane, trans-1,2-dichloroethene, cyclopentene, etc. with the bonds in them. Here is an example of what i would like the program to draw...
Hello,
I need to make sure I understand some of the reactions correctly... For example:
CH2OHCH3 in H+ will give us CH2=CH2. I would think that here the H+ bonded with the OH resulting in H2O (a leaving group), but I am not sure what happens to the other leaving H.
In RC≡CR' in Na/NH3...
I receieved an online organic chemistry prep tool from my college. It includes a couple of sections on alkanes. Do I really need start memorizing all these hydrocarbons for my organic chemistry class?
we ofen hear the terms organic, natural and chemical in the media. Organic and natural are usually used to imply that a product is "healthy" and/or "environmentally friendly" while chemical often implies negative implications for health and for the environment. In your opinion are these...
I'd like to work with solar cells made from organic material, and am currently leaning toward electrical engineering.
I tried contacting Dr. Chen (mentioned here: http://investintaiwan.nat.gov.tw/en/news/200706/2007062001.html ), but have gotten no response. He is the only one at the Chiao...
I came across this question and I don't understand how to approach it.
Write balanced equations to show the formation of each of the following compounds. Name the reactants in each case and show clearly the removal of the water molecule.
a) butyl propanoate
b)propyl methanoate
I don't...
Hi,
I have here an alkyne reacting with C2H5NH2 in the presence of lithium and NH4Cl.
Does the lithium catalyse the split of a proton from C2H5NH2 and also a Cl from the NH4Cl which then react with the alkyne across the triple bond?
After drawing the 8 alcohols with the formula C5H11OH, I'm asked to "Describe how they are formed and give two uses for this type of alcohol."
The only example in my text for this is the hydration of an alkene which, at a glance, wouldn't make sense for 2,2-dimethyl 1 propanol. Is this one...
1)Give a chemical test that can be used to distinguis between separate samples of propanone and propanal. Give a suitable reagent for the test and describe what you would obsrve with propanone and with propanal.
2) Outline the reaction of propanone with the following reagents. Give the...
Homework Statement
What is the product when 1,1,4,4-tetra D cyclohexane
is treated with SO2Cl2
The Attempt at a Solution
I'm confused whether Cl will replace D or H (it must replace anyone of them)
What is the real future of this technology? Is it potentially the next revolution. It seems very intriguing and I am tempted to purchase a couple texts on the subject and work through them over the next few months.
https://www.amazon.com/dp/3527312641/?tag=pfamazon01-20
This may be something...
Homework Statement
Hi all,
In a sodium borohydride reaction, one of the hydride in BH4- will attack the ketone, and the O- in the ketone will bond with the BH3. This would continue until all the hydride ions are used up.
My question is..what would be the driving force that makes the...
Homework Statement
R-CH=CH-C=_CH in presense of CrO3 and HOAc gives R-COOH+ CH=_C-COOH
The Attempt at a Solution
Can someone please explain this reaction to me? Seems like the double bond was broken and replaced with a =O. Almost like ozonolysis except the triple bond wasnt touched.
I am working on a project to design an organic Rankine cycle to convert low temperature thermal energy (waste heat or geothermal) into electrical energy. We are trying to select an expander to extract work from the pressure differential in the refrigerant. The refrigerant (ammonia or R134a)...
Hi,
The problem was to propose a synthetic scheme for making maleic acid (cis-but-2-ene-1,4-dioic acid) from acetylene (as part of a larger synthesis where I would have to use the maleic anhydride in a Diels-Alders cycloaddition with 1,3-cyclopentadiene made from cyclopentanol to get a...
Homework Statement
I am to draw a structural diagram of 2,4-dimethyl-1-heptyne.
2. The attempt at a solution
----------CH3
CH=C-CH2-CH-CH2-CH2-CH3
---CH3
I tried just using spaces but it wouldn't indent them so I used hyphens. Now, I'm fairly certain my answer is correct (one of...
How do you name this compound??
I used SpartanBuild to draw it and I copied the picture
Please check the link below:
http://i148.photobucket.com/albums/s38/InsertMe/unknowncompound.jpg
I'm thinking its a bispiro with a cyclopropyl and an ethyl substituent
Yours truly,
FaNgS...
Homework Statement
This is a problem taken from an old exam:
C. Which set of pKa’s is correct?
1. CH3COCH3 -7.0 2. CH3COCH3 -19.0
CH3COOH 4.8 CH3COOH -4.8
HCl 19.0 HCl 7.0
3. CH3COCH3 4.8...
Hi,
I'm encountering organic chemistry for the first time in high school and am finding it quite exciting. I'm using Morrison and Boyd as the text. I was wondering if you could test me with a few synthetic problems or product prediction that will challenge my understanding and application? I...
If one has a mixture of borneol (standard bp: 210 C) and verbenone (standard bp: 227.5 C), would the mixture's boiling point theoretically be the average of the two (218.75 C), or is there something else I have to take into consideration (vapor pressure)?
Thanks.
Is this even correct?
A natural product (MW = 150 g/mol) distills with steam at a boiling temperature of 99 C at atmospheric pressure. The vapor pressure of water at 99 C is 733 mmHg.
a. Calculate the weight of the natural product that codistills with each gram of water at 99 C...
hello, ok i will get straight to the point i don't get the following questions:
Indicate the following type of reation that is taking place, and also give an example.
a) Alkyl halide to alcohol
b) Alkyl halide to alkene
c) alkyl halide to alkyne
d) alkene to an alcohol
i tried a), i got...
In organic if you have more than one functional group.. how do you know which will react in preference?
In the attachment I've got an organic compound which has an ether and alcohol.
In terms of naming the alcohol gets preference.
It reacts with excess HI and the alcohol apparently...
Hey, I'm trying to figure out how to convert 4-methylpentanoic acid into 4-methyl-2-bromopentanoic acid and I'm stuck. It's second semester O-chem for reference. Any ideas? Thanks.
Say we have a mixture of 10 mL of methane and propane. For a complete combustion, we need 41 mL of O2. Calculate the composition of the mixture in terms of volume, if atmospheric temperature and pressure are constants.
The equations are:
CH4 + O2 --> CO2 + H2O
C3H8 + O2 --> CO2 + H2O
I...
Need help with organic chemistry lab!
Hi, I've performed an experiment involving the oxidation of cyclohexene to adipic acid and I want to make sure if I got the products correct. I first prepared a solution of cyclohexene and potassium permanganate in water. Then I added sodium hydroxide. Then...
Hey. I've just started organic chemistry in class, and I am currently up to naming compounds, and isomerism.
Ive been going through some excersizes, and came across a few questions I am having trouble with.
The first one:
http://img136.imageshack.us/img136/870/3methylpentanech5.gif...
naming organic compounds help pleasezz
I need some help naming the compound below CH3-CH-CH3
|
CH3CCH=CH2
|
CH3-CHCH2CH3
The vertical line should be from the second Carbons not the first. I can't move the line to the middle SORRY!
The name I have is 3,4-dimethyl-3-propylhexene
Okay, using the structure of organic compounds. Are supposed "natural" vitamin C extracts from rose hips better than synthetic tablets of vitamin C? I have to answer this and if another source is used document it. So If you have the answer can you tell me where you found it? Thanks in advance...
Question: The synthesis of an organic compound typically involves a series of reactions, for example, some substitutions and some additions.
a) Plan a reaction beginning with a hydrocarbon to prepare 1,1,2-trichloroethane
b) What experimental complications might arise in attempting the...
This question came up on one of our worksheets:
A fruity compount A (C2H4O2) is hydrolysed by distilled H2SO4 to give B and C (CH2O2). C reacts with Mg to yield H2 and compound D. B is oxidised to form methanoic acid. Give the structural formula and reaction. Name A, B, C and D.
The solution...
Discuss the difference in the reactivity between the following pairs of compounds :
1. Benzene and phenol with bromine
2. 1-hexanol and 2-hexanol with chromium trioxide in acid
3. ethylamine and acetamide in dil HCl
4. Sodium methoxide and sodium tert-butoxide with 1- bromopropane
Thanks
Are the answers I got correct?
http://img162.imageshack.us/img162/4007/untitled6kq1.png
What I got:
1. a.
http://img162.imageshack.us/img162/2193/1a3bp.png
1. b.
http://img81.imageshack.us/img81/4995/1b9ov.png
http://img84.imageshack.us/img84/4194/515oo.png...
Hello guys and girls. I am writing to you all today in hopes that someone out there will be able to help me with my problem. I am asked to synthesize the molecule camphor starting merely from acetly-CoA and Acetic Acid. This must be done in a biological manner. Ie. The Co-A group will be...
Hey can anyone help me with this question?
What is the major product from the acid-catalyzed hydration of 3-methyl-2-pentene?
a. 3-methylpentane
b. 3-methyl-1-pentanol
c. 3-methyl-2-pentanol
d. 3-methyl-3-pentanol
e. 3-methoxypentane
Would the answer by D? My reasoning is that when...