The Stack Overflow podcast is back! Listen to an interview with our new CEO.
Chemistry
Meta user
Network profile
20,022
reputation
1
35
60

porphyrin

I'm a semi-retired physical chemist.

588
answers
0
questions
~1.2m
people reached
  • Member for 3 years, 5 months
  • 2,259 profile views
  • Last seen 4 hours ago

Communities (6)

Top network posts

We respect a laser-like focus on one topic.

Top tags (169)

Score 471
Posts 164
Posts % 28
Score 231
Posts 82
Score 203
Posts 61
Score 199
Posts 53
Score 180
Posts 64
Score 131
Posts 39
View all tags →

Top posts (588) All Questions Answers | Votes Newest

23 Understanding group theory easily and quickly Sep 7 '16
16 Is it possible for a substance to absorb a longer wavelength of EM wave and emit a shorter wavelength? Jul 7 '17
15 Why does bond angle decrease in the order H2O, H2S, H2Se? Aug 25 '16
13 Is there any empirical upper limit for order of reaction? Jul 19 '17
12 What is resonance, and are resonance structures real? Jul 31 '16
12 Why do spin isomers of hydrogen (ortho and para hydrogen) change their nuclear spin with temperature variance? Jan 29 '17
12 Can magnetic fields affect a chemical reaction? Jul 23 '16
11 Terminology of atomic spectroscopy: Difference Among Term, States and Level Aug 30
11 Uv vis and fluorescence spectroscopy: sensitivity Nov 21 '17
11 Does deuterated water slow down the overall metabolism of a cell? Jul 23 '17
View all questions and answers →

Badges (96)

Gold

1

Rarest

Silver

35

Rarest

Bronze

60

Rarest

View all badges →