Topics (384k) Articles (398k) Users (410) Discussions (242) Comments (383) Files (13k) New article
A Bravais lattice with three perpendicular conventional axes and lattice points at and . A translation by half a diagonal of an face preserves the complete crystal motif; apparent centering of unlabelled molecular centers alone is insufficient.
An organosilicon compound containing Si–Cl bonds. Hydrolysis can produce silanols, whose condensation builds siloxane linkages.
The substituent , often abbreviated . Its steric and electronic effects should be separated when interpreting regioselectivity.
A compound containing a silicon–oxygen double bond, . Ordinary small-substituent silanones are highly reactive; oligomerization to siloxane linkages is favoured over persistence as freely dissolved monomers.
A three-membered metal–carbon–carbon ring description with substantial metal–carbon sigma bonding and reduced alkyne bond order.
An oligomeric aluminium–oxygen reagent used to alkylate and ionize metallocene polymerization catalysts.
The reactive early-metal alkylidene . carbonyl methylenation proceeds through an oxatitanacyclobutane; alkene capture gives a titanacyclobutane. Its oxygen affinity makes ester methylenation feasible.
A four-membered metallacycle containing titanium and three carbon atoms. Cycloreversion can exchange an alkene and a titanium alkylidene; other eliminations become available with suitable substituents.
An allylic organotitanium species that can add its allyl group to a carbonyl compound, furnishing a homoallylic alcohol after hydrolysis.
An organocopper reagent capable of carbon-group transfer. Suitable organocuprates can favour conjugate addition to an enone over direct addition to its carbonyl.
A neutral piano-stool complex , conventionally chromium(0), with 18 valence electrons. arene substitution changes electron density and carbonyl stretching frequencies.
Pinned article: Introduction to the OurBigBook Project
Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
Intro to OurBigBook
. Source. We have two killer features:
- topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculusArticles of different users are sorted by upvote within each article page. This feature is a bit like:
- a Wikipedia where each user can have their own version of each article
- a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
Figure 1. Screenshot of the "Derivative" topic page. View it live at: ourbigbook.com/go/topic/derivativeVideo 2. OurBigBook Web topics demo. Source. - local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
Figure 2. You can publish local OurBigBook lightweight markup files to either OurBigBook.com or as a static website.
Figure 3. Visual Studio Code extension installation.
Figure 5. . You can also edit articles on the Web editor without installing anything locally. Video 3. Edit locally and publish demo. Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension. 
- Infinitely deep tables of contents:
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact