Class information for:
Level 2: PROTON SPONGE//PERIMIDINE//QUANTUM ORGAN CHEM GRP

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
3584 1281 29.2 52%


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
647 3       PROTON SPONGE//TETRAZOLE//5 SUBSTITUTED 1H TETRAZOLES 11951
3584 2             PROTON SPONGE//PERIMIDINE//QUANTUM ORGAN CHEM GRP 1281
12423 1                   PROTON SPONGE//QUANTUM ORGAN CHEM GRP//1 8 BISDIMETHYLAMINONAPHTHALENE 906
25797 1                   PERIMIDINE//PERI ANNELATION//1 3 DIAZAPYRENES 272
35037 1                   14 PI ELECTRON SYSTEM//5 BENZOYL 1 4 NAPHTHOQUINONE//CHEMSAS 103

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 PROTON SPONGE authKW 1494273 7% 65% 96
2 PERIMIDINE authKW 720481 4% 66% 46
3 QUANTUM ORGAN CHEM GRP address 709179 4% 55% 54
4 1 8 BISDIMETHYLAMINONAPHTHALENE authKW 251757 1% 81% 13
5 MTBD authKW 245162 1% 86% 12
6 STRONG N BASE authKW 238355 1% 100% 10
7 C ACIDS authKW 214519 1% 100% 9
8 PERI ANNELATION authKW 193066 1% 90% 9
9 1 3 DIAZAPYRENES authKW 190684 1% 100% 8
10 TBD authKW 167991 1% 41% 17

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, Organic 9343 39% 0% 497
2 Chemistry, Multidisciplinary 3199 33% 0% 428
3 Chemistry, Physical 1815 27% 0% 344
4 Physics, Atomic, Molecular & Chemical 190 6% 0% 78
5 Crystallography 129 3% 0% 43
6 Chemistry, Medicinal 50 3% 0% 34
7 Spectroscopy 47 2% 0% 30
8 Chemistry, Inorganic & Nuclear 21 3% 0% 33
9 Education, Scientific Disciplines 0 0% 0% 4
10 Materials Science, Characterization, Testing 0 0% 0% 2

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 QUANTUM ORGAN CHEM GRP 709179 4% 55% 54
2 FUNDAMENTAL CHEM 40574 2% 7% 24
3 CHEM QUANTUM CHEM GRP 31779 0% 67% 2
4 GRP COMPUTAT LIFE SCI 31779 0% 67% 2
5 QUATUM ORGAN CHEM GRP 31779 0% 67% 2
6 ADVANTAGE PLANTS OURCES HUNAN SOUTH 23835 0% 100% 1
7 ARBEITSGRUPPE ORGAN CHEM 23835 0% 100% 1
8 CHARITE MED MED PHYS BIOPHYS 23835 0% 100% 1
9 CHEM NICEFR 3037 23835 0% 100% 1
10 DEPARMENT CHEM ENG 23835 0% 100% 1

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 JOURNAL OF MOLECULAR STRUCTURE 19069 10% 1% 127
2 CHEMISTRY OF HETEROCYCLIC COMPOUNDS 10026 2% 2% 26
3 JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 9407 4% 1% 57
4 ZHURNAL ORGANICHESKOI KHIMII 8760 4% 1% 53
5 JOURNAL OF PHYSICAL ORGANIC CHEMISTRY 5849 2% 1% 29
6 KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII 4832 3% 1% 36
7 RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 3118 2% 0% 27
8 RUSSIAN CHEMICAL BULLETIN 2538 2% 0% 32
9 CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE 1791 2% 0% 21
10 CROATICA CHEMICA ACTA 1525 1% 1% 13

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 PROTON SPONGE 1494273 7% 65% 96 Search PROTON+SPONGE Search PROTON+SPONGE
2 PERIMIDINE 720481 4% 66% 46 Search PERIMIDINE Search PERIMIDINE
3 1 8 BISDIMETHYLAMINONAPHTHALENE 251757 1% 81% 13 Search 1+8+BISDIMETHYLAMINONAPHTHALENE Search 1+8+BISDIMETHYLAMINONAPHTHALENE
4 MTBD 245162 1% 86% 12 Search MTBD Search MTBD
5 STRONG N BASE 238355 1% 100% 10 Search STRONG+N+BASE Search STRONG+N+BASE
6 C ACIDS 214519 1% 100% 9 Search C+ACIDS Search C+ACIDS
7 PERI ANNELATION 193066 1% 90% 9 Search PERI+ANNELATION Search PERI+ANNELATION
8 1 3 DIAZAPYRENES 190684 1% 100% 8 Search 1+3+DIAZAPYRENES Search 1+3+DIAZAPYRENES
9 TBD 167991 1% 41% 17 Search TBD Search TBD
10 5 5 DIBROMO 2 2 BIPHENOL 166848 1% 100% 7 Search 5+5+DIBROMO+2+2+BIPHENOL Search 5+5+DIBROMO+2+2+BIPHENOL

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 POZHARSKII, AF , (1998) NAPHTHALENE "PROTON SPONGE".USPEKHI KHIMII. VOL. 67. ISSUE 1. P. 3 -27 90 91% 17
2 RAAB, V , KIPKE, J , GSCHWIND, RM , SUNDERMEYER, J , (2002) 1,8-BIS(TETRAMETHYLGUANIDINO)NAPHTHALENE (TMGN): A NEW, SUPERBASIC AND KINETICALLY ACTIVE "PROTON SPONGE".CHEMISTRY-A EUROPEAN JOURNAL. VOL. 8. ISSUE 7. P. 1682 -1693 52 75% 121
3 KALJURAND, I , SAAME, J , RODIMA, T , KOPPEL, I , KOPPEL, IA , KOGEL, JF , SUNDERMEYER, J , KOHN, U , COLES, MP , LEITO, I , (2016) EXPERIMENTAL BASICITIES OF PHOSPHAZENE, GUANIDINOPHOSPHAZENE, AND PROTON SPONGE SUPERBASES IN THE GAS PHASE AND SOLUTION.JOURNAL OF PHYSICAL CHEMISTRY A. VOL. 120. ISSUE 16. P. 2591 -2604 58 48% 2
4 DESPOTOVIC, I , MAKSIC, ZB , VIANELLO, R , (2006) ENGINEERING NEUTRAL ORGANIC BASES AND SUPERBASES BY COMPUTATIONAL DFT METHODS - CARBONYL POLYENES.EUROPEAN JOURNAL OF ORGANIC CHEMISTRY. VOL. . ISSUE 24. P. 5505-5514 48 84% 5
5 DESPOTOVIC, I , MAKSIC, ZB , VIANELLO, R , (2007) COMPUTATIONAL DESIGN OF BRONSTED NEUTRAL ORGANIC SUPERBASES-[3]IMINORADIALENES AND QUINONIMINES ARE IMPORTANT SYNTHETIC TARGETS.NEW JOURNAL OF CHEMISTRY. VOL. 31. ISSUE 1. P. 52-62 53 69% 23
6 BARIC, D , DRAGICEVIC, I , KOVACEVIC, B , (2013) DESIGN OF SUPERBASIC GUANIDINES: THE ROLE OF MULTIPLE INTRAMOLECULAR HYDROGEN BONDS.JOURNAL OF ORGANIC CHEMISTRY. VOL. 78. ISSUE 8. P. 4075-4082 37 84% 9
7 KOGEL, JF , XIE, XL , BAAL, E , GESEVICIUS, D , OELKERS, B , KOVACEVIC, B , SUNDERMEYER, J , (2014) SUPERBASIC ALKYL-SUBSTITUTED BISPHOSPHAZENE PROTON SPONGES: SYNTHESIS, STRUCTURAL FEATURES, THERMODYNAMIC AND KINETIC BASICITY, NUCLEOPHILICITY AND COORDINATION CHEMISTRY.CHEMISTRY-A EUROPEAN JOURNAL. VOL. 20. ISSUE 25. P. 7670 -7685 48 62% 7
8 DESPOTOVIC, I , MAKSIC, ZB , VIANELLO, R , (2007) DESIGN OF BRONSTED NEUTRAL ORGANIC BASES AND SUPERBASES BY COMPUTATIONAL DFT METHODS: CYCLIC AND POLYCYCLIC QUINONES AND [3]CARBONYLRADIALENES.EUROPEAN JOURNAL OF ORGANIC CHEMISTRY. VOL. . ISSUE 20. P. 3402-3413 50 68% 14
9 POZHARSKII, AF , OZERYANSKII, VA , (2012) PROTON SPONGES AND HYDROGEN TRANSFER PHENOMENA.MENDELEEV COMMUNICATIONS. VOL. 22. ISSUE 3. P. 117-124 39 75% 4
10 BARIC, D , KOVACEVIC, B , (2016) CYCLOPROPENIMINE AS PINCER LIGAND AND STRONG ELECTRON DONOR IN PROTON SPONGES.JOURNAL OF PHYSICAL ORGANIC CHEMISTRY. VOL. 29. ISSUE 12. P. 750 -758 40 68% 0

Classes with closest relation at Level 2


Rank Class id link
1 2462 LINEAR DICHROIC EFFECTS//H D ISOTOPIC EFFECTS//INTRAMOLECULAR HYDROGEN BOND
2 3851 GUANIDINE//ANGIPARS TM//SEMELIL
3 3865 2 AMINO 2 OXAZOLINE//POLYAMIDINES//CHIM THER EUT BIOCIS
4 4064 N N DIMETHYLBIGUANIDE//TECHNOL PL SCI CHIYODA KU//3 AZIDO 1 2 PROPANEDIOL
5 2987 CHARGE TRANSFER COMPLEX//CT COMPLEXES//NITROBENZOFUROXANS
6 1417 CROSS INTERACTION CONSTANT//GRUNWALD WINSTEIN EQUATION//PYRIDINOLYSIS
7 2884 SILATRANE//GERMATRANE//HYPERCOORDINATION
8 3427 FLUOROALKANESULFONYL AZIDES//FAVORSKII IRKUTSK CHEM//IMIDOYLPHOSPHONATES
9 3693 DZERZHINSK BRANCH//ZHURNAL OBSHCHEI KHIMII//ENTHALPY ENTROPY RELATIONSHIP
10 2622 TRIOSEPHOSPHATE ISOMERASE//HISTIDINE BIOSYNTHESIS//KETOSTEROID ISOMERASE

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