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ORGANIC CHEMISTRY LANEY COLLEGE CHEM 12A/B INSTRUCTOR: S. CORLETT Version 20120216 Online NMR Practice Problems and Resources. Some good resources to practice NMR problems and combined spectral problems (ones that have. Based on Fourier transform theory, the free induction decay (FID) associated with the broad lines of NOM samples decays very rapidly. Due to pulse ring-down in the probe coil, detection should be started after the “dead time”, which is the time period between the end of the pulse and the time at which the energy of the pulse has been sufficiently dissipated that the receiver can be gated. Draw a chemical structure and click on 'Calculate spectrum'. You may also DRAG / DROP a molfile! You will get an interactive NMR spectrum. Labile protons like OH, NH, CO 2 H are not predicted! About using NMRdb.org on-line software for simulation of NMR spectra.
Michaël Zasso | 16 Aug 19 |
Welcome another new ml.js package: ml-fcnnls ! JavaScript implementation of a fast algorithm to solve non-negative least square linear problems. github.com/mljs/fcnnls#mljs#DataScience#javascript#NodeJS |
Michaël Zasso | 22 Jun 19 |
I am working on a library to simplify spawning and sending jobs to worker threads on Node.js and the browser. This is not production-ready yet but I would love to get feedback and/or help on the implementation! github.com/zakodium/ework |
Http://nmrdbase.kenyon.edu
Cheminfo | 9 Jan 19 |
We are currently looking for a JavaScript programmer to contribute to the open-source development of a graphical application for scientific data processing.If you have competencies in collaborative javascript development check the following offer:stellenwerk-koeln.de/sites/default/… |
Cheminfo | 17 Sep 18 |
Image processing in javascript ? image-js (npmjs.com/package/image-…) provides advance tools not only for basic processing like rotation, scaling, blur, colour level, etc. but also to analyse complex images using region of interests (ROIs), minimal boundary rectangle, etc. pic.twitter.com/XQy7hlIvXc |
Cheminfo | 8 Oct 17 |
Are you teaching structural analysis (mass, IR or NMR) or just would like to make some exercises ? You could try the website we created for our teaching: cheminfo.org/flavor/structu… (using Google Chrome) pic.twitter.com/swS2aUf87K |
Cheminfo | 1 Sep 17 |
Replying to @OpenBioprinting Here is a video of the DIY spectrophotometer: youtube.com/watch?v=ZfckWQ… |
Cheminfo | 16 May 17 |
Check our electronic laboratory notebook designed for organic chemists ... but not only! c6h6.org and youtu.be/SHN07asZaGcpic.twitter.com/ipLYro8wlW |
Cheminfo | 24 Oct 16 |
Get information about elements of the periodic table using our Telegram bot: telegram.me/periodic_botpic.twitter.com/TznOvgiNDI |
Cheminfo | 2 Oct 16 |
Calculate directly information about molecular formula using our Telegram bot: telegram.me/chemcalc_bot. pic.twitter.com/9wWFmit6fI |
Cheminfo | 11 Jun 16 |
Want to play a little bit and guess the structure of unknown products based on NMR spectra ? cheminfo.org/Spectra/NMR/Ex…pic.twitter.com/6nnkfW1NwG |
Spectral Database For Organic Compounds
Cheminfo | 1 Jun 16 |
Test mass fragmentations of a molecule. Draw the molecule and click on the breakable bonds. cheminfo.org/Spectra/Mass/M…pic.twitter.com/hZRwNcwSkY |
Cheminfo | 6 May 16 |
We just published a new algorithm that allows the computer to learn by itself to predict chemical shifts dx.doi.org/10.1186/s13321… |
Cheminfo | 1 Dec 15 |
Simulate complex NMR 1H multiplet directly on-line with a modern browser. cheminfo.org/Spectra/NMR/To…pic.twitter.com/0qu7wz3bMA |
Cheminfo | 26 May 15 |
Create virtual combinatorial libraries directly from the browser and filter based on predicted chemical properties. cheminfo.org/Chemistry/Chem… |
Nmrdb Shift
Cheminfo | 21 Apr 15 |
The website cheminfo.org compiles amazing tools that we have developed. Friday, learn how to create them linkedin.com/redirect?url=h… |
Cheminfo | 18 Mar 15 |
Our last development: substructure and similarity chemical search for wikipedia cheminfo.org/wikipedia |
Cheminfo | 29 Sep 14 |
Using ChemCalc you can specify resolution (FWHM). This will apply a gaussian to the isotopic distribution. pic.twitter.com/9RUYNCQ0gG |
Nmrdb Predictor
Cheminfo | 23 Sep 14 |
New: Download NMR predicted spectra as jcamp and reopen them ChemDraw, Mestrec ! nmrdb.org/13c/pic.twitter.com/zWnmQA8YpC |
Cheminfo | 11 Sep 14 |
Predict 1H proton NMR spectra directly from a web browser supporting HTML5. No need for java! nmrdb.org/new_predictor/pic.twitter.com/Ismc5Uw3PV |