Recent content by chlove

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    Chemical engineering vs chemistry

    I'm just graduated from university. Now, I want to take graduate studies. But, I'm still confuse to choose major in my master degree. My undergraduate studies is chemistry (natural science), but some person told me that I must take chemical engineering to support my future. I don't understand...
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    Why Isn't My Quaternary Amine and Ester Compound Soluble in Organic Solvents?

    With reaction dodecyl alcohol (catalyst : SOCl2), reflux method. To characterize it, I did FTIR.
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    Why Isn't My Quaternary Amine and Ester Compound Soluble in Organic Solvents?

    No, I didn't DCC/DMAP coupling. I didnt't play with urea. I just did esterification reaction (so I have 2 long ester chain) and, then reacted with methylating agent (so I get 2 quartenary amine). I think, my compound will be zwitter ionic ( 2 quartenary amine and 2 ion carboclic, with 2 long...
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    Why Isn't My Quaternary Amine and Ester Compound Soluble in Organic Solvents?

    I have waashed my compound with water, so maybe I assume that I dont't have inorganic material in my system. thank you.
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    Why Isn't My Quaternary Amine and Ester Compound Soluble in Organic Solvents?

    My route synthesis : My initial compound (it has been purified) has 2 group of carbocylic acid, 2 group of carbocyclic ion (COO-Na+). All of this group is connected with 1 tertiary amine. the tertiary amine is connected with methylene group. Then, I try to react my initial compound with dodecyl...
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    Why Isn't My Quaternary Amine and Ester Compound Soluble in Organic Solvents?

    Water, DMSO, DMAc, DMF, acetic acid, acetone, chloroform, ethyl acetat, dichloromethane, toluene, CCl4, n-hexane toluene:DMAc:methanol (2:1:1), acetone:chloroform:dichloromethane:methanol=1:2:1:1,chloroform : THF=1:9, chloromethane:dichloromethane:THF = 2:1:1, chloroform:methanol:THF = 1:1:1...
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    Why Isn't My Quaternary Amine and Ester Compound Soluble in Organic Solvents?

    What kind of inorganic material do you mean ? From what process I can get inorganic material ? do you know other solvent which is suitable for my compound ? Thanks you
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    Why Isn't My Quaternary Amine and Ester Compound Soluble in Organic Solvents?

    I'll describe what kind of organic synthesis I have done. First, I reacted alcohol (doecyl)with compound which has 2 carboxylic group and 2 ion carboxylic group.Then, I made quartenary amine attached to this compound. So, according to my prediction, this compound has been made well. Can you help...
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    Why Isn't My Quaternary Amine and Ester Compound Soluble in Organic Solvents?

    I want to analyze my compound with NMR and MS. But because it can't soluble well at NMR solvent, I worry that I can't characterize this compound. The counterion is I-. Sorry I'm confuse why you suggest me to exchange the counter ion with PF6 or tetraphenylborate ? Thank you
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    Why Isn't My Quaternary Amine and Ester Compound Soluble in Organic Solvents?

    I have synthesized new compound containing 2 quartenary amine and 2 long chain ester (dodecyl). However, I get difficulties to find the suitable solvent to my system. My compound just soluble at hot water. Logically, because it has long chain ester, it must be soluble at organic solvent. But, it...
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