Class information for: |
Basic class information |
| Class id | #P | Avg. number of references |
Database coverage of references |
|---|---|---|---|
| 20070 | 477 | 22.4 | 34% |
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 |
| 9 | 3 | CHEMISTRY, ORGANIC//JOURNAL OF HETEROCYCLIC CHEMISTRY//KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII | 135847 |
| 2324 | 2 | TERT AMINO EFFECT//ALPHA OXOKETENE DITHIOACETALS//FAK CHEM ORGAN CHEM | 4461 |
| 20070 | 1 | 4H THIOPYRANS//2H THIOPYRANS//4H THIOPYRAN 1 1 DIOXIDES | 477 |
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 | 4H THIOPYRANS | authKW | 204837 | 2% | 40% | 8 |
| 2 | 2H THIOPYRANS | authKW | 200041 | 1% | 63% | 5 |
| 3 | 4H THIOPYRAN 1 1 DIOXIDES | authKW | 192043 | 1% | 100% | 3 |
| 4 | 4H SELENOPYRAN | authKW | 128029 | 0% | 100% | 2 |
| 5 | DETERMINATION OF TRAP DENSITIES AND TRAP LEVELS | authKW | 128029 | 0% | 100% | 2 |
| 6 | DISCHARGE CURRENT TRANSIENT SPECTROSCOPY | authKW | 128029 | 0% | 100% | 2 |
| 7 | DISCHARGE CURRENT TRANSIENT SPECTROSCOPY DCTS | authKW | 128029 | 0% | 100% | 2 |
| 8 | DISCHARGING CURRENT TRANSIENT SPECTROSCOPY DCTS | authKW | 128029 | 0% | 100% | 2 |
| 9 | THIOPYRYLIUM SALTS | authKW | 128029 | 0% | 100% | 2 |
| 10 | TRANSIENT REVERSE CURRENT | authKW | 128029 | 0% | 100% | 2 |
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 | 5681 | 49% | 0% | 234 |
| 2 | Chemistry, Multidisciplinary | 1087 | 32% | 0% | 153 |
| 3 | Crystallography | 115 | 5% | 0% | 23 |
| 4 | Chemistry, Applied | 99 | 5% | 0% | 24 |
| 5 | Chemistry, Inorganic & Nuclear | 42 | 4% | 0% | 21 |
| 6 | Chemistry, Physical | 27 | 8% | 0% | 40 |
| 7 | Spectroscopy | 4 | 1% | 0% | 7 |
| 8 | Medical Informatics | 2 | 0% | 0% | 2 |
| 9 | Multidisciplinary Sciences | 2 | 1% | 0% | 3 |
| 10 | Imaging Science & Photographic Technology | 1 | 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 | MICROBIOL BIOTECHNOL CHEM CHAIR | 64014 | 0% | 100% | 1 |
| 2 | SEKT CHEM LIEBIGSTR 18 | 64014 | 0% | 100% | 1 |
| 3 | FOR STELLE CHEM TOXIKOL | 32006 | 0% | 50% | 1 |
| 4 | SEAC ME | 32006 | 0% | 50% | 1 |
| 5 | MED CHEM MICROBIOL GRP | 21337 | 0% | 33% | 1 |
| 6 | MYIANEH BRANCH | 12801 | 0% | 20% | 1 |
| 7 | ZENT MOLEK BIOL | 12801 | 0% | 20% | 1 |
| 8 | CHEM MINEROL | 10667 | 0% | 17% | 1 |
| 9 | INTERDISZIPLINARE ARBEITSGRP ZEITAUFGELOSTE SPEKT | 10667 | 0% | 17% | 1 |
| 10 | FOR UNGSZENTRUM ROSSENDORF | 8256 | 0% | 6% | 2 |
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 | KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII | 68161 | 17% | 1% | 82 |
| 2 | JOURNAL FUR PRAKTISCHE CHEMIE-PRACTICAL APPLICATIONS AND APPLIED CHEMISTRY | 18675 | 3% | 2% | 12 |
| 3 | ZHURNAL ORGANICHESKOI KHIMII | 6589 | 6% | 0% | 28 |
| 4 | JOURNAL FUR PRAKTISCHE CHEMIE | 5470 | 2% | 1% | 10 |
| 5 | ZEITSCHRIFT FUR CHEMIE | 4192 | 3% | 1% | 13 |
| 6 | COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS | 3852 | 4% | 0% | 21 |
| 7 | JOURNAL OF HETEROCYCLIC CHEMISTRY | 3657 | 5% | 0% | 25 |
| 8 | JOURNAL FUR PRAKTISCHE CHEMIE-CHEMIKER-ZEITUNG | 2991 | 1% | 1% | 7 |
| 9 | ADVANCES IN HETEROCYCLIC CHEMISTRY | 2798 | 1% | 1% | 4 |
| 10 | JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1529 | 3% | 0% | 14 |
Author Key Words |
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 | ZIMMERMANN, T , KRAUTSCHEID, H , (2007) RING TRANSFORMATIONS OF HETEROCYCLIC COMPOUNDS. XXV. PHENANTHRENE ALDEHYDE IMINES VIA RING TRANSFORMATION OF PYRYLIUM SALTS WITH METHYLENEDIHYDROISOQUINOLINES - A NOVEL ACCESS TO THE PHENANTHRENE SKELETON.JOURNAL OF HETEROCYCLIC CHEMISTRY. VOL. 44. ISSUE 5. P. 1029 -1034 | 21 | 84% | 0 |
| 2 | DODDI, G , ERCOLANI, G , (1994) THIOPYRYLIUM, SELENOPYRYLIUM, AND TELLUROPYRYLIUM SALTS.ADVANCES IN HETEROCYCLIC CHEMISTRY, VOL 60. VOL. 60. ISSUE . P. 65-195 | 64 | 35% | 36 |
| 3 | LEWANOWICZ, A , LIPINSKI, J , OLSZOWSKI, A , SWORAKOWSKI, J , (2003) PHOTOCHEMICAL REACTIONS IN POLYCRYSTALLINE 1-METHYL-2,4,4,6-TETRAPHENYL-1,4-DIHYDROPYRIDINE.PHASE TRANSITIONS. VOL. 76. ISSUE 9-10. P. 847-855 | 18 | 95% | 1 |
| 4 | KUTHAN, J , SEBEK, P , BOHM, S , (1994) DEVELOPMENTS IN THE CHEMISTRY OF THIOPYRANS, SELENOPYRANS, AND TELUROPYRANS.ADVANCES IN HETEROCYCLIC CHEMISTRY, VOL 59. VOL. 59. ISSUE . P. 179-244 | 57 | 37% | 24 |
| 5 | SWORAKOWSKI, J , NESPUREK, S , LIPINSKI, J , LEWANOWICZ, A , SLIWINSKA, E , (2001) KINETICS OF PHOTOCHROMIC PROCESSES IN SUBSTITUTED DIHYDROPYRIDINES IN THE SOLID STATE AND IN SOLUTIONS.MOLECULAR CRYSTALS AND LIQUID CRYSTALS. VOL. 356. ISSUE . P. 163 -173 | 16 | 94% | 1 |
| 6 | JAFARPOUR, F , RAMEZANI, F , PIRELAHI, H , (2008) EFFECTS OF ELECTRON-WITHDRAWING GROUP ON THE PHOTOISOMERIZATION OF TETRAARYL-4H-THIOPYRAN-1,1-DIOXIDES.HETEROATOM CHEMISTRY. VOL. 19. ISSUE 6. P. 557-561 | 13 | 87% | 0 |
| 7 | SWORAKOWSKI, J , NESPUREK, S , LIPINSKI, J , LEWANOWICZ, A , (1999) ON THE MECHANISM OF BLEACHING REACTIONS IN A PHOTOCHROMIC DIHYDROPYRIDINE DERIVATIVE.JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY. VOL. 129. ISSUE 1-2. P. 81 -87 | 15 | 94% | 2 |
| 8 | ZIMMERMANN, T , HENNIG, L , (2002) RING TRANSFORMATIONS OF HETEROCYCLIC COMPOUNDS. XXII. PYRIDO[1,2-A]INDOLIUM SALTS FROM 2-METHYL-3H-INDOLES BY PYRYLIUM MEDIATED THREE CARBON ANNELATION.JOURNAL OF HETEROCYCLIC CHEMISTRY. VOL. 39. ISSUE 2. P. 263-269 | 16 | 76% | 4 |
| 9 | LEWANOWICZ, A , LIPINSKI, J , NESPUREK, S , OLSZOWSKI, A , SLIWINSKA, E , SWORAKOWSKI, J , (1999) PHOTOCHROMIC ACTIVITY OF DIHYDROPYRIDINE DERIVATIVES: ENERGETICS AND KINETICS OF PHOTOCHEMICALLY DRIVEN REACTIONS IN POLYCRYSTALLINE 1-METHYL-2,4,4,6-TETRAPHENYL-1,4-DIHYDROPYRIDINE.JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY. VOL. 121. ISSUE 2. P. 125 -132 | 16 | 84% | 2 |
| 10 | KROULIK, J , CEJKA, J , BOHM, S , SEBEK, P , NESPUREK, S , KOSHETS, I , SEDMERA, P , HALADA, P , HAVLICEK, V , KRATOCHVIL, B , ET AL (2002) SUBSTITUTED 2,4,4,6-TETRAPHENYL-4H-SELENOPYRANS: PREPARATION, PHOTOCOLOURATION AND 4H-SELENOPYRAN RING GEOMETRY; AN X-RAY AND DFT CALCULATION STUDY.JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2. VOL. . ISSUE 11. P. 1909 -1916 | 21 | 57% | 2 |
Classes with closest relation at Level 1 |