Class information for:
Level 1: VANADYL PORPHYRINS//STERYL CHLORIN ESTERS//GEOPORPHYRINS

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
14559 695 29.9 46%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
215 20103 PORPHYRINOIDS//JOURNAL OF PORPHYRINS AND PHTHALOCYANINES//PORPHYRIN

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 VANADYL PORPHYRINS Author keyword 45 94% 2% 16
2 STERYL CHLORIN ESTERS Author keyword 17 100% 1% 8
3 GEOPORPHYRINS Author keyword 12 86% 1% 6
4 PETROPORPHYRINS Author keyword 11 67% 1% 10
5 PYROPHAEOPHORBIDE A Author keyword 9 83% 1% 5
6 GEOCHEM COSMOCHEM Address 8 52% 2% 11
7 DPEP Author keyword 4 75% 0% 3
8 PYRROLE CHEMISTRY Author keyword 3 100% 0% 3
9 PRIEST POT Author keyword 3 60% 0% 3
10 CHLOROPHYLL TRANSFORMATION Author keyword 2 67% 0% 2

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class		 LCSH search Wikipedia search
1 VANADYL PORPHYRINS 45 94% 2% 16 Search VANADYL+PORPHYRINS Search VANADYL+PORPHYRINS
2 STERYL CHLORIN ESTERS 17 100% 1% 8 Search STERYL+CHLORIN+ESTERS Search STERYL+CHLORIN+ESTERS
3 GEOPORPHYRINS 12 86% 1% 6 Search GEOPORPHYRINS Search GEOPORPHYRINS
4 PETROPORPHYRINS 11 67% 1% 10 Search PETROPORPHYRINS Search PETROPORPHYRINS
5 PYROPHAEOPHORBIDE A 9 83% 1% 5 Search PYROPHAEOPHORBIDE+A Search PYROPHAEOPHORBIDE+A
6 DPEP 4 75% 0% 3 Search DPEP Search DPEP
7 PYRROLE CHEMISTRY 3 100% 0% 3 Search PYRROLE+CHEMISTRY Search PYRROLE+CHEMISTRY
8 PRIEST POT 3 60% 0% 3 Search PRIEST+POT Search PRIEST+POT
9 CHLOROPHYLL TRANSFORMATION 2 67% 0% 2 Search CHLOROPHYLL+TRANSFORMATION Search CHLOROPHYLL+TRANSFORMATION
10 NICKEL PORPHYRINS 2 67% 0% 2 Search NICKEL+PORPHYRINS Search NICKEL+PORPHYRINS

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 SEDIMENTARY PORPHYRINS 37 100% 2% 14
2 FINGERPRINTING PETROPORPHYRIN STRUCTURES 35 86% 3% 18
3 PETROPORPHYRINS 25 63% 4% 25
4 GEOPORPHYRINS 17 100% 1% 8
5 NICKELII CYCLOALKANOPORPHYRINS 14 100% 1% 7
6 CARBOCYCLIC RINGS 13 67% 2% 12
7 OIL SHALE 12 18% 9% 60
8 CYCLOALKANOPORPHYRINS 12 86% 1% 6
9 CHLOROPHYLL TRANSFORMATION PRODUCTS 11 100% 1% 6
10 PYRROLIC COMPOUNDS 11 36% 3% 24

Journals

Reviews


Title Publ. year Cit. Active
references		 % act. ref.
to same field
Chemistry and Association of Vanadium Compounds in Heavy Oil and Bitumen, and Implications for Their Selective Removal 2010 34 96 36%
Porphyrins with exocyclic rings. Part 22: Synthesis of deoxophylloerythroetioporphyrin (DPEP), three ring homologues, and five related nonpolar bacteriopetroporphyrins using a western ring closure and an improved b-bilene methodology 2007 6 84 81%
Element speciation analysis of petroleum and related materials 2009 19 73 45%
STUDIES IN PORPHYRIN CHEMISTRY - A SYNTHETIC APPROACH 1991 35 33 88%
MECHANISMS INVOLVED IN ALTERING DEOXOPHYLLOERYTHROETIOPORPHYRIN-ETIOPORPHYRIN RATIOS IN SEDIMENTS AND OILS 1987 27 3 100%
EVIDENCE FOR PORPHYRINS OF BACTERIAL AND ALGAL ORIGIN IN OIL-SHALE 1987 29 20 90%
GEOCHEMISTRY OF METAL-COMPLEXES IN PETROLEUM, SOURCE ROCKS, AND COALS - AN OVERVIEW 1987 43 44 59%
SEDIMENTARY PORPHYRINS - UNEXPECTED STRUCTURES, OCCURRENCE, AND POSSIBLE ORIGINS 1987 23 27 93%
MASS-SPECTROMETRY OF GEOPORPHYRINS 1985 36 13 92%
The importance of diazotrophic cyanobacteria as primary producers during Cretaceous Oceanic Anoxic Event 2 2006 36 68 16%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 GEOCHEM COSMOCHEM 8 52% 1.6% 11
2 REFINING PETROCHEM TECHNOL BUSINESS UNIT 1 40% 0.3% 2
3 ICAL IL 1 50% 0.1% 1
4 STRASBOURG CHEM 1 50% 0.1% 1
5 UMR 7177 GEOCHIM BIOORGAN 1 50% 0.1% 1
6 ICPMS IL 0 17% 0.1% 1
7 MOL BIOGEOCHEM 0 14% 0.1% 1
8 RICHLAND OPERAT OFF 0 14% 0.1% 1
9 ESPE OSCOPIA MOL ATOM 0 10% 0.1% 1
10 CIENCIAS 1A 0 100% 0.1% 1

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000215832 SYNTH ANAL//TETRABENZOPORPHYRIN//ORGAN MOL ELECT
2 0.0000186196 CHEMTAX//CHLOROPHYLL C PIGMENTS//MARKER PIGMENTS
3 0.0000118295 CHLOROSOME//BACTERIOCHLOROPHYLL C//CHLOROSOMES
4 0.0000101802 EXTRACTION INDUCED BY EMULSION BREAKING//WEAR METALS//DERIVATIVE POTENTIOMETRIC STRIPPING ANALYSIS
5 0.0000080299 PHAEOPHYTINS//BERBERIS KOREANA//NAT SCI ECOL
6 0.0000077749 HYDRODEMETALLIZATION//HYDRODEMETALLATION//HYDROCRACKING
7 0.0000075629 HALIFAX MARINE//KOBR KOH TREATMENT//IFBM
8 0.0000070616 CHLOROPHYLLASE//CHLOROPHYLL DEGRADATION//CHLOROPHYLL CATABOLISM
9 0.0000067479 ORGANIC GEOCHEMISTRY//ARYL ISOPRENOIDS//EVAPORATIVE FRACTIONATION
10 0.0000058587 CARBON AND SULFUR ISOTOPE//DICTYONEMA SHALES//GRAPTOLITE ARGILLITE