Class information for:
Level 1: N HETEROCYCLIC CARBENE//N HETEROCYCLIC CARBENES//CARBENE LIGANDS

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
256 3801 55.8 82%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
5 4 CHEMISTRY, ORGANIC//CHEMISTRY, INORGANIC & NUCLEAR//CHEMISTRY, MULTIDISCIPLINARY 1745167
36 3       CHEMISTRY, INORGANIC & NUCLEAR//ORGANOMETALLICS//JOURNAL OF ORGANOMETALLIC CHEMISTRY 104103
1904 2             N HETEROCYCLIC CARBENE//N HETEROCYCLIC CARBENES//CARBENE LIGANDS 5912
256 1                   N HETEROCYCLIC CARBENE//N HETEROCYCLIC CARBENES//CARBENE LIGANDS 3801

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 N HETEROCYCLIC CARBENE authKW 1254582 9% 44% 354
2 N HETEROCYCLIC CARBENES authKW 668206 7% 31% 266
3 CARBENE LIGANDS authKW 639828 5% 42% 190
4 CARBENES authKW 504963 9% 18% 347
5 ORGANOMETALLICS journal 175589 20% 3% 754
6 NHC authKW 165759 1% 44% 47
7 CHEMISTRY, INORGANIC & NUCLEAR WoSSC 98132 56% 1% 2147
8 ACYCLIC DIAMINOCARBENES authKW 88348 0% 100% 11
9 CARBENE COMPLEXES authKW 84937 2% 15% 71
10 IMIDAZOLINIUM SALT authKW 68522 0% 53% 16

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 Chemistry, Inorganic & Nuclear 98132 56% 1% 2147
2 Chemistry, Organic 35125 43% 0% 1651
3 Chemistry, Multidisciplinary 5161 26% 0% 972
4 Crystallography 1193 5% 0% 205
5 Chemistry, Applied 77 2% 0% 82
6 Chemistry, Physical -0 4% 0% 140
7 Education, Scientific Disciplines -2 0% 0% 5
8 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY -2 0% 0% 3
9 Engineering, Petroleum -2 0% 0% 1
10 Mathematics, Interdisciplinary Applications -10 0% 0% 5

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 UMR 2282 64626 0% 62% 13
2 CHAIR INORGAN CHEM MOL CATALYSIS 59021 1% 29% 25
3 UCR CNRS JOINT CHEM 44057 0% 37% 15
4 JOINT CHEM UMI 2957 42822 0% 44% 12
5 DIFFRACT IL 40158 0% 100% 5
6 JOINT CHEM 37687 0% 36% 13
7 UCR CNRS JOINT CHEM UMI 2957 34231 0% 47% 9
8 QUIM INORGAN ORGAN 32914 2% 6% 68
9 ANORGAN ANALYT CHEM 31799 4% 3% 139
10 HETEROCHIM FONDAMENTALE PL 30211 1% 11% 35

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ORGANOMETALLICS 175589 20% 3% 754
2 DALTON TRANSACTIONS 48201 9% 2% 331
3 JOURNAL OF ORGANOMETALLIC CHEMISTRY 44797 10% 1% 392
4 EUROPEAN JOURNAL OF INORGANIC CHEMISTRY 19691 4% 2% 160
5 CHEMICAL COMMUNICATIONS 6060 5% 0% 183
6 CHEMISTRY-A EUROPEAN JOURNAL 5719 3% 1% 131
7 APPLIED ORGANOMETALLIC CHEMISTRY 4695 1% 1% 43
8 ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 4030 4% 0% 143
9 INORGANICA CHIMICA ACTA 2912 2% 0% 80
10 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 1940 1% 1% 48

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 N HETEROCYCLIC CARBENE 1254582 9% 44% 354 Search N+HETEROCYCLIC+CARBENE Search N+HETEROCYCLIC+CARBENE
2 N HETEROCYCLIC CARBENES 668206 7% 31% 266 Search N+HETEROCYCLIC+CARBENES Search N+HETEROCYCLIC+CARBENES
3 CARBENE LIGANDS 639828 5% 42% 190 Search CARBENE+LIGANDS Search CARBENE+LIGANDS
4 CARBENES 504963 9% 18% 347 Search CARBENES Search CARBENES
5 NHC 165759 1% 44% 47 Search NHC Search NHC
6 ACYCLIC DIAMINOCARBENES 88348 0% 100% 11 Search ACYCLIC+DIAMINOCARBENES Search ACYCLIC+DIAMINOCARBENES
7 CARBENE COMPLEXES 84937 2% 15% 71 Search CARBENE+COMPLEXES Search CARBENE+COMPLEXES
8 IMIDAZOLINIUM SALT 68522 0% 53% 16 Search IMIDAZOLINIUM+SALT Search IMIDAZOLINIUM+SALT
9 N HETEROCYCLIC CARBENE NHC 66705 0% 46% 18 Search N+HETEROCYCLIC+CARBENE+NHC Search N+HETEROCYCLIC+CARBENE+NHC
10 IMIDAZOLIUM SALTS 66645 1% 17% 49 Search IMIDAZOLIUM+SALTS Search IMIDAZOLIUM+SALTS

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref. in
cl.		 Shr. of ref. in
cl.		 Citations
1 HAHN, FE , JAHNKE, MC , (2008) HETEROCYCLIC CARBENES: SYNTHESIS AND COORDINATION CHEMISTRY.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION. VOL. 47. ISSUE 17. P. 3122 -3172 365 74% 1628
2 DIEZ-GONZALEZ, S , MARION, N , NOLAN, SP , (2009) N-HETEROCYCLIC CARBENES IN LATE TRANSITION METAL CATALYSIS.CHEMICAL REVIEWS. VOL. 109. ISSUE 8. P. 3612 -3676 362 37% 1438
3 POYATOS, M , MATA, JA , PERIS, E , (2009) COMPLEXES WITH POLY(N-HETEROCYCLIC CARBENE) LIGANDS: STRUCTURAL FEATURES AND CATALYTIC APPLICATIONS.CHEMICAL REVIEWS. VOL. 109. ISSUE 8. P. 3677 -3707 205 78% 494
4 NELSON, DJ , NOLAN, SP , (2013) QUANTIFYING AND UNDERSTANDING THE ELECTRONIC PROPERTIES OF N-HETEROCYCLIC CARBENES.CHEMICAL SOCIETY REVIEWS. VOL. 42. ISSUE 16. P. 6723-6753 163 81% 239
5 BELLEMIN-LAPONNAZ, S , DAGORNE, S , (2014) GROUP 1 AND 2 AND EARLY TRANSITION METAL COMPLEXES BEARING N-HETEROCYCLIC CARBENE LIGANDS: COORDINATION CHEMISTRY, REACTIVITY, AND APPLICATIONS.CHEMICAL REVIEWS. VOL. 114. ISSUE 18. P. 8747 -8774 245 64% 57
6 BUDAGUMPI, S , HAQUE, RA , SALMAN, AW , (2012) STEREOCHEMICAL AND STRUCTURAL CHARACTERISTICS OF SINGLE- AND DOUBLE-SITE PD(II)-N-HETEROCYCLIC CARBENE COMPLEXES: PROMISING CATALYSTS IN ORGANIC SYNTHESES RANGING FROM C-C COUPLING TO OLEFIN POLYMERIZATIONS.COORDINATION CHEMISTRY REVIEWS. VOL. 256. ISSUE 17-18. P. 1787 -1830 224 68% 64
7 KANTCHEV, EAB , O'BRIEN, CJ , ORGAN, MG , (2007) PALLADIUM COMPLEXES OF N-HETEROCYCLIC CARBENES AS CATALYSTS FOR CROSS-COUPLING REACTIONS - A SYNTHETIC CHEMIST'S PERSPECTIVE.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION. VOL. 46. ISSUE 16. P. 2768 -2813 147 61% 1042
8 NASR, A , WINKLER, A , TAMM, M , (2016) ANIONIC N-HETEROCYCLIC CARBENES: SYNTHESIS, COORDINATION CHEMISTRY AND APPLICATIONS IN HOMOGENEOUS CATALYSIS.COORDINATION CHEMISTRY REVIEWS. VOL. 316. ISSUE . P. 68 -124 191 66% 5
9 LIN, JCY , HUANG, RTW , LEE, CS , BHATTACHARYYA, A , HWANG, WS , LIN, IJB , (2009) COINAGE METAL-N-HETEROCYCLIC CARBENE COMPLEXES.CHEMICAL REVIEWS. VOL. 109. ISSUE 8. P. 3561 -3598 165 58% 564
10 LIN, IJB , VASAM, CS , (2007) PREPARATION AND APPLICATION OF N-HETEROCYCLIC CARBENE COMPLEXES OF AG(I).COORDINATION CHEMISTRY REVIEWS. VOL. 251. ISSUE 5-6. P. 642-670 135 88% 399

Classes with closest relation at Level 1


Rank Class id link
1 11016 GOLDIII COMPLEXES//GOLD COMPLEXES//GOLDIII
2 8405 N HETEROCYCLIC CARBENES//STETTER REACTION//UMPOLUNG
3 10880 CARBONES//PHOSPHENIUM COMPLEXES//CARBODIPHOSPHORANES
4 441 HECK REACTION//SUZUKI REACTION//SUZUKI MIYAURA REACTION
5 29887 BENZIMIDAZOLE METAL COMPLEXES//BENZIMIDAZOLE SALT//CRISTALLOGR HIE PHYS MOL
6 32092 4 NITROBENZIMIDAZOLE DERIVATIVE//HOFFMANN TYPE ELIMINATION//QUADRUPOLAR MACROCYCLES
7 19089 ALKYLISOCYANIDE//ARYLISOCYANIDES//TRIFLUOROMETHYL ISOCYANIDE
8 22163 1 LAMBDA5 3 LAMBDA5 DIPHOSPHETE//GMELIN ANORGAN CHEM//NMR IR MASS SPECTRA
9 27882 DITHIOCOUMARINS//THIOLANE 1 OXIDES//1 3 CYCLOALKANEDICARBOXYLIC ACIDS
10 20916 MESOMERIC BETAINE//INDAZOL 3 YLIDENE//PYRAZOL 4 YLIDENE

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