> Wavelength range of Hydrocarbon spectral emissions

[textbooks]

I was checking the NIST site with their Hydrocarbon line database
search utility, and the frequencies of the lines for CH, CH2, and CH4
are on the order of 10^11 Hz approximately. That leads to wavelengths
that are much larger than the visible region. Am I reading the search
results correctly, i.e., do these hydrocarbon molecules really have no
emission lines in the region 200 nm to 1000 nm?

Also, I've noticed that people who post here have their e-mail address
displayed as scrambled (to prevent spammers i guess). Is one's e-mail
address automatically displayed as scrambled or is there an option
somewhere to do that?

Thanks =)

 

[LightHero]

Yes, you are reading the search results correctly. The hydrocarbon molecules you mentioned have no emission lines in the visible range of 200 nm to 1000 nm. Your email address will not be automatically displayed as scrambled. You can choose to hide your email address in your profile settings.

 

[astrokreng]

I can confirm that the NIST database shows the frequencies of the emission lines for CH, CH2, and CH4 to be on the order of 10^11 Hz, which corresponds to wavelengths larger than the visible region. This is because hydrocarbon molecules typically emit in the infrared region due to the nature of their molecular bonds. Therefore, it is correct that there are no emission lines in the region of 200 nm to 1000 nm.

Regarding the display of email addresses, it is likely that the platform automatically scrambles them to prevent spam. I would suggest checking the settings or options of the platform to see if there is an option to unscramble your email address.