Class information for:
Level 1: ROTATIONAL TUNNELING//AMMONIUM ION ISOTOPOMERS//METHYL TUNNELLING

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
8945 1202 23.0 43%


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
292 3       CRYSTALLOGRAPHY//ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE//ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS 41672
1507 2             CRYSTAL STRUCTURE PREDICTION//PLASTIC CRYSTALS//GRP CARACTERITZACIO MAT 7530
8945 1                   ROTATIONAL TUNNELING//AMMONIUM ION ISOTOPOMERS//METHYL TUNNELLING 1202

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 ROTATIONAL TUNNELING authKW 171460 1% 75% 9
2 AMMONIUM ION ISOTOPOMERS authKW 127011 0% 100% 5
3 METHYL TUNNELLING authKW 101609 0% 100% 4
4 INCOHERENT TUNNELLING authKW 81285 0% 80% 4
5 PROTON SPIN LATTICE RELAXATION authKW 81285 0% 80% 4
6 ROTATIONAL TUNNELLING authKW 76207 0% 100% 3
7 METHYL ROTATION authKW 59262 1% 33% 7
8 AMMONIUM TETRACHLOROPLATINATE authKW 57153 0% 75% 3
9 AMMONIUM HEXABROMOPLATINATE authKW 50804 0% 100% 2
10 AMMONIUM HEXACHLORORUTHENATE authKW 50804 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 Physics, Atomic, Molecular & Chemical 9711 36% 0% 429
2 Chemistry, Physical 5196 44% 0% 530
3 Physics, Condensed Matter 4080 31% 0% 378
4 Spectroscopy 1048 9% 0% 104
5 Physics, Multidisciplinary 770 13% 0% 157
6 Crystallography 126 3% 0% 41
7 Thermodynamics 105 3% 0% 36
8 Biochemical Research Methods 21 2% 0% 29
9 Chemistry, Multidisciplinary 14 6% 0% 67
10 Physics, Applied 7 5% 0% 60

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 REG NANOTECHNOL IL 50804 0% 100% 2
2 AG MOL KRISTALLE 37349 0% 29% 5
3 FRANK NEUTRON 33868 0% 67% 2
4 WIHURI PHYS 27689 2% 5% 21
5 AG FESTKORPERKTROSKOPIE EXPTL PHYS 25402 0% 100% 1
6 ANGEWANDTE KERNPHYS 1 25402 0% 100% 1
7 CHEM 1 NUKLEARCHEM 25402 0% 100% 1
8 CNRSUMR 5819 PHYS MAT SYNTH 25402 0% 100% 1
9 EQUIPE MAT CONDENSEE SYST ELE OACT 25402 0% 100% 1
10 FOR UNG NEUTRONENQUELLE FRM 2 25402 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 SOLID STATE NUCLEAR MAGNETIC RESONANCE 40559 4% 4% 44
2 ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER 12381 4% 1% 45
3 JOURNAL OF CHEMICAL PHYSICS 10209 16% 0% 187
4 JOURNAL OF PHYSICS C-SOLID STATE PHYSICS 8145 3% 1% 40
5 PHYSICA B-CONDENSED MATTER 7654 8% 0% 97
6 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES 6663 3% 1% 40
7 JOURNAL OF CHEMICAL THERMODYNAMICS 3884 3% 0% 33
8 CHEMICAL PHYSICS 3059 3% 0% 41
9 PHYSICA B 2967 0% 2% 6
10 JOURNAL OF MAGNETIC RESONANCE 2336 2% 0% 29

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 ROTATIONAL TUNNELING 171460 1% 75% 9 Search ROTATIONAL+TUNNELING Search ROTATIONAL+TUNNELING
2 AMMONIUM ION ISOTOPOMERS 127011 0% 100% 5 Search AMMONIUM+ION+ISOTOPOMERS Search AMMONIUM+ION+ISOTOPOMERS
3 METHYL TUNNELLING 101609 0% 100% 4 Search METHYL+TUNNELLING Search METHYL+TUNNELLING
4 INCOHERENT TUNNELLING 81285 0% 80% 4 Search INCOHERENT+TUNNELLING Search INCOHERENT+TUNNELLING
5 PROTON SPIN LATTICE RELAXATION 81285 0% 80% 4 Search PROTON+SPIN+LATTICE+RELAXATION Search PROTON+SPIN+LATTICE+RELAXATION
6 ROTATIONAL TUNNELLING 76207 0% 100% 3 Search ROTATIONAL+TUNNELLING Search ROTATIONAL+TUNNELLING
7 METHYL ROTATION 59262 1% 33% 7 Search METHYL+ROTATION Search METHYL+ROTATION
8 AMMONIUM TETRACHLOROPLATINATE 57153 0% 75% 3 Search AMMONIUM+TETRACHLOROPLATINATE Search AMMONIUM+TETRACHLOROPLATINATE
9 AMMONIUM HEXABROMOPLATINATE 50804 0% 100% 2 Search AMMONIUM+HEXABROMOPLATINATE Search AMMONIUM+HEXABROMOPLATINATE
10 AMMONIUM HEXACHLORORUTHENATE 50804 0% 100% 2 Search AMMONIUM+HEXACHLORORUTHENATE Search AMMONIUM+HEXACHLORORUTHENATE

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 PRAGER, M , HEIDEMANN, A , (1997) ROTATIONAL TUNNELING AND NEUTRON SPECTROSCOPY: A COMPILATION.CHEMICAL REVIEWS. VOL. 97. ISSUE 8. P. 2933 -2966 274 74% 138
2 HORSEWILL, AJ , (1999) QUANTUM TUNNELLING ASPECTS OF METHYL GROUP ROTATION STUDIED BY NMR.PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY. VOL. 35. ISSUE 4. P. 359 -389 93 97% 80
3 COLMENERO, J , MORENO, AJ , ALEGRIA, A , (2005) NEUTRON SCATTERING INVESTIGATIONS ON METHYL GROUP DYNAMICS IN POLYMERS.PROGRESS IN POLYMER SCIENCE. VOL. 30. ISSUE 12. P. 1147 -1184 73 66% 40
4 SMITH, D , (1994) HINDERED ROTATION OF THE AMMONIUM ION IN THE SOLID-STATE.CHEMICAL REVIEWS. VOL. 94. ISSUE 6. P. 1567-1584 87 59% 29
5 CARLILE, CJ , PRAGER, M , (1993) ROTATIONAL TUNNELING SPECTROSCOPY WITH NEUTRONS.INTERNATIONAL JOURNAL OF MODERN PHYSICS B. VOL. 7. ISSUE 16-17. P. 3113 -3151 69 79% 12
6 MORENO, AJ , ALEGRIA, A , COLMENERO, J , FRICK, B , (2001) METHYL GROUP DYNAMICS IN POLY(METHYL METHACRYLATE): FROM QUANTUM TUNNELING TO CLASSICAL HOPPING.MACROMOLECULES. VOL. 34. ISSUE 14. P. 4886 -4896 40 100% 21
7 BECKMANN, PA , MOORE, CE , RHEINGOLD, AL , (2016) METHYL AND T-BUTYL GROUP ROTATION IN A MOLECULAR SOLID: H-1 NMR SPIN-LATTICE RELAXATION AND X-RAY DIFFRACTION.PHYSICAL CHEMISTRY CHEMICAL PHYSICS. VOL. 18. ISSUE 3. P. 1720 -1726 28 80% 1
8 MORENO, AJ , ALEGRIA, A , COLMENERO, J , FRICK, B , (2002) METHYL-GROUP DYNAMICS FROM TUNNELING TO HOPPING IN NACH3CO2 CENTER DOT 3 H2O: COMPARISON BETWEEN A CRYSTAL AND ITS GLASSY COUNTERPART.PHYSICAL REVIEW B. VOL. 65. ISSUE 13. P. - 35 95% 5
9 BIRCZYNSKI, A , LALOWICZ, ZT , PUNKKINEN, M , SZYMOCHA, AM , (2006) DEUTERON SPIN-LATTICE RELAXATION IN PARTIALLY DEUTERATED AMMONIUM HEXACHLOROTELLURATE.CHEMICAL PHYSICS. VOL. 327. ISSUE 2-3. P. 373-384 29 100% 1
10 BIRCZYNSKI, A , LALOWICZ, ZT , LODZIANA, Z , (2004) ROTATIONAL BARRIERS IN AMMONIUM HEXACHLOROMETALLATES AS STUDIED BY NMR, TUNNELLING SPECTROSCOPY AND AB INITIO CALCULATIONS.CHEMICAL PHYSICS. VOL. 299. ISSUE 1. P. 113-122 31 94% 10

Classes with closest relation at Level 1


Rank Class id link
1 18127 IONIC PLASTIC PHASE//CL 35 NQR SPIN LATTICE RELAXATION//H 1 NMR T 1
2 21241 HETERONUCLEAR INTERACTIONS//PROTON SECOND MOMENT OF THE NMR LINE//ACTIVATION PROCESS MODEL
3 28511 CHBR2CL//EXTERNAL MODE//INFRARED SPECTROSCOPY RAMAN SPECTROSCOPY
4 13199 QUADRUPOLAR GLASS//ORIENTATIONAL GLASS//ALKALI CYANIDE
5 22748 NEUTRON SCATTERING METHODS//PHASE TRANSIT TEAM//MOLECULAR REORIENTATIONS
6 29841 SCI CHEM JONAN KU//GEN EDUC HIGASHI KU//TECHNOL ELECT HIGASHI KU
7 34730 ATTENUATIVE//NITRIC ACID WATER SYSTEMS//NMR POWER SPECTRA
8 21352 CNRSUP A 6091//TRANS HONO//CIS HONO
9 23826 CHLORANILATE//CHLORANILATE ANIONS//2 2 PYRIDYLQUINOXALINE COMPLEXES
10 23668 CHLORINE TRIOXIDE//SCI TECHNOL HOLDING//ALKALI PERCHLORATE

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