Some people say that the article is more innovative before investing in communication and letter. In order to seize the opportunity, others say that there is too little content and they like it. But nature communicaton, nano letters and so on are particularly famous, and many of nature's papers are published in the form of letters!

For medium-level journals, the quality of letters or communications added at the back is similar to that without letters. The original intention of communication magazines is to publish the results of articles quickly, review and publish faster, and require less data, so the impact factor is slightly lower, but it is generally not much different from its sister journals. Such as tetrahedron, tetrahedron letters.

Many JACS are communication,

Like JACS, articles are more difficult than communication, and the quality of articles should be better.

However, there are also all-communication journals such as chemical correspondent electrochemical communication, and the articles are all good.