how to read Literature 看文献的学问 结合看到的一些真知灼见,加上我这次历时4周的prelim(preliminary,准备;预赛;初步措施)考试(精读+粗读,怎么也得两三百篇吧),我也来也谈谈看文献。其实看文献也是一种学问,因为掌握多少知识并不重要,至少不是最关键的,知道怎样去掌握知识才是最关键的。千万不要小看...
So I have the NMR (I think H-NMR??) of my unknown. Looks like this: So how do I read this to explain how I know that my compound is 1-pentyne? Logged toadesque Regular Member Posts: 82 Mole Snacks: +1/-0 Re: Forgot how to interpret NMR ...
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"product_version": "3.12.4", "users": [ { "name": "admin", "password_hash": "FT36tPaTkj3IXlMTg6MhTrz86evp4hdt2p60IxaJnmRWy7Ry", "hashing_algorithm": "rabbit_password_hashing_sha256", "tags": [ "administrator" ], "limits": {} }, { "name": "service-test", "...
Re: How to Calculate NMR Signals «Reply #2 on:December 04, 2010, 10:30:33 PM » I thought the answer would be 5 for number 12. This is because I counted the ch2 bonds on the right as one. Logged saden99 Regular Member
The first Nuclear Magnetic Resonance (NMR) beams were detected in the 1930s by a team of researchers from Columbia University in New York City. Click to read more...
In NMR experiments it is difficult to modify the phosphorus bond length, R(P-E), by, for example, isotopic substitution or by placing the molecule in an exited rovibrational state (dynamic NMR).[1] In contrast, ab initio NMR computations can be performed not only for energy minimized struct...
Structure determination and chemical characterization, including NMR spectroscopy are in focus. Uppsala (Stad) (SE) Swedish University of Agricultural Sciences Global Faculty Recruitment of School of Life Sciences, Tsinghua University The School of Life Sciences at Tsinghua University invites applications ...
We read Cosansu's commentary entitled ''Hematological parameters in patients with chronic spontaneous urticaria'' to our study with a great interest. The author noted that monocytes increased in inflammatory diseases such as urticaria but decreased after treatment. She argued that NMR was not used ...
How much of a sample is "enough" to obtain a good 1H NMR spectrum? Does it matter which type of spectrometer is being used? Define the terms matter and mass. What is the difference between a total-ion chromatogram and a mass chromatogram?