Welcome!

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Hello, Richardliu12, and welcome to Wikipedia! Thank you for your contributions, especially what you did for Hydrogen bond catalysis. I hope you like the place and decide to stay. Here are some pages that you might find helpful:

I hope you enjoy editing here and being a Wikipedian! Please sign your messages on talk pages using four tildes (~~~~); this will automatically insert your username and the date. If you need help, check out Wikipedia:Questions, ask me on my talk page, or ask your question on this page and then place {{help me}} before the question. Again, welcome! Hairrr (talk) 00:24, 22 October 2012 (UTC)Reply

Chemical Structures

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Hi, could I point you to Wikipedia:Manual of Style/Chemistry/Structure drawing. We are trying to keep all chemical structures of en-wiki and only have them on Commons, where all wikis can use them. It's a bit of never ending battle but we have almost completed it (>2000 drawings have moved). We would be grateful if you could upload to commons direct for us. You may wish to note that drawings have a standard license as they have no originality - {{PD-chem}}. Thanks for your attention. Your existing drawings will soon be moved for you.  Ronhjones  (Talk) 23:44, 18 December 2012 (UTC)Reply