Download presentation
Presentation is loading. Please wait.
Published byOsborne Todd Modified over 6 years ago
1
General thermolytic routes to new unstable species - thiocarbonyls
C=S CH3CH=S F2C=S H2C=C=S (CH3)2CH=S The first carbon phosphorus double C=P bonded species – phosphaalkenes H2C=PH F2C=PH H2C=PCl H2C=PF H2C=CH-C=PH General method for creating carbon phosphorus triple bonded species – phosphaalkynes – only HCP previously known (for more than a decade) CH3CP HCP FCP ClCP C6H5CP NC–CP HCC–CP General method for creating Boron –Sulphides HCC–CC–CP CH3B=S FB=S ClB=S BrB=S General method for creating cyanopolyynes HCCCCCN HCC CCCCCN At Sussex we created many new molecules and studied them by microwave spectroscopy and photoelectron spectroscopy Phosphorus compounds with John Nixon - Polyynes with David Walton
2
Spectra Interstellar Molecules
Harry Kroto 2004
3
Walton Polyyne Synthesis
H−C≡C−C≡C−C≡N Walton Polyyne Synthesis
4
Radioastronomy Survey
5
HCCCCCN Rotating dipolar molecule → a photon that can be detected by a radio telescope
6
Radioastronomy
7
CCCCCCCCCCCCCCCCCCCCCCCCCC
Harry Kroto 2004
8
H−C≡C−C≡C−C≡N Synthesis Polyyne Synthesis Harry Kroto 2004
9
H−C≡C−C≡C−C≡N HC5N Harry Kroto 2004
10
SgrB2
11
Harry Kroto 2004
12
Oka
13
Harry Kroto 2004
14
Harry Kroto 2004
15
H−C≡C−C≡C−C≡C−C≡N HC7N Harry Kroto 2004
16
HC7N Radiastronomy Harry Kroto 2004
17
HC7N Media Hype Harry Kroto 2004
18
Harry Kroto 2004
19
Harry Kroto 2004
20
Oka,Avery,Broten,McLeod(NRC);Alexander,Kirby,Walton(Sussex)
HCCCCCN HCCCCCCCN HCCCCCCCCN Oka,Avery,Broten,McLeod(NRC);Alexander,Kirby,Walton(Sussex) Harry Kroto 2004
21
TMC Harry Kroto 2004
22
IRC 10216
23
Bill Klemperer www.vega.org.uk
24
Total energy must be conserved and in a plant at snooker or billiards the blue ball takes away the energy and the white and red can thus remain in contact after collision
25
H...H 3 Body Collision Harry Kroto 2004
26
Reaction Coordinate - Energy
Products C A + B Reaction Coordinate - Energy Harry Kroto 2004
27
Grain Surface Reactions
Harry Kroto 2004
28
Ion Molecule Reactions – H2O
c.r O H H H e- He He+ O+ OH+ OH2+ OH3+ OH2 +e He H H H H Ion Molecule Reactions – H2O Harry Kroto 2004
29
H2 H2 H H3+ + e H
30
Orion Nebula Birth Harry Kroto 2004
31
The long carbon chain problem
Harry Kroto 2004
32
C60 VS
33
Stellar Birth Harry Kroto 2004
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.