Crystal field theory

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Crystal field theory

Quality:

Crystal field theory - model that describes the breaking of degeneracies of electron orbital states, usually d or f orbitals, due to a static electric field produced by a surrounding charge distribution (anion neighbors). Article “Crystal field theory” in Simple English Wikipedia has 2.1 points for quality (as of July 1, 2025).

This article has the best quality in Chinese Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “Crystal field theory”, its content was written by 2 registered users of Simple English Wikipedia and edited by 347 registered Wikipedia users in all languages.

The article is cited 2 times in Simple English Wikipedia and cited 413 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Simple English): #7118 in December 2018
  • Global: #20553 in October 2011

The highest popularity rank from 2008:

  • Local (Simple English): #38539 in September 2019
  • Global: #60721 in November 2016

There are 20 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1Chinese (zh)
晶体场理论
51.188
2Finnish (fi)
Kidekenttäteoria
48.0728
3English (en)
Crystal field theory
43.0826
4Dutch (nl)
Kristalveldtheorie
41.29
5Portuguese (pt)
Teoria do campo cristalino
39.6712
6French (fr)
Théorie du champ cristallin
38.6003
7Indonesian (id)
Teori medan kristal
36.1401
8Polish (pl)
Teoria pola krystalicznego
36.0244
9Thai (th)
ทฤษฎีสนามผลึก
35.2354
10Spanish (es)
Teoría del campo cristalino
34.7996
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Crystal field theory" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Crystal field theory
2 655 488
2Spanish (es)
Teoría del campo cristalino
315 175
3Japanese (ja)
結晶場理論
204 531
4Chinese (zh)
晶体场理论
196 782
5French (fr)
Théorie du champ cristallin
182 334
6Russian (ru)
Теория кристаллического поля
152 649
7Polish (pl)
Teoria pola krystalicznego
128 386
8Italian (it)
Teoria del campo cristallino
116 958
9Indonesian (id)
Teori medan kristal
84 765
10Korean (ko)
결정장 이론
49 483
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2025

The most popular language versions of the article "Crystal field theory" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Crystal field theory
3 795
2Chinese (zh)
晶体场理论
1 055
3Russian (ru)
Теория кристаллического поля
567
4Japanese (ja)
結晶場理論
450
5Spanish (es)
Teoría del campo cristalino
432
6French (fr)
Théorie du champ cristallin
343
7Italian (it)
Teoria del campo cristallino
309
8Polish (pl)
Teoria pola krystalicznego
256
9Simple English (simple)
Crystal field theory
194
10Portuguese (pt)
Teoria do campo cristalino
182
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Crystal field theory" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Crystal field theory
128
2French (fr)
Théorie du champ cristallin
29
3Italian (it)
Teoria del campo cristallino
28
4Dutch (nl)
Kristalveldtheorie
26
5Chinese (zh)
晶体场理论
20
6Japanese (ja)
結晶場理論
19
7Spanish (es)
Teoría del campo cristalino
16
8Russian (ru)
Теория кристаллического поля
16
9Polish (pl)
Teoria pola krystalicznego
14
10Arabic (ar)
نظرية المجال البلوري
10
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2025

Language versions of the article "Crystal field theory" with the highest AI in June 2025
#LanguageAI awardRelative AI
1French (fr)
Théorie du champ cristallin
2
2Arabic (ar)
نظرية المجال البلوري
1
3Azerbaijani (az)
Kristal sahə nəzəriyyəsi
1
4Catalan (ca)
Teoria del camp cristal·lí
0
5English (en)
Crystal field theory
0
6Spanish (es)
Teoría del campo cristalino
0
7Persian (fa)
نظریه میدان بلور
0
8Finnish (fi)
Kidekenttäteoria
0
9Indonesian (id)
Teori medan kristal
0
10Italian (it)
Teoria del campo cristallino
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Crystal field theory" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Crystal field theory
134
2Chinese (zh)
晶体场理论
45
3Spanish (es)
Teoría del campo cristalino
32
4Persian (fa)
نظریه میدان بلور
30
5Japanese (ja)
結晶場理論
29
6Italian (it)
Teoria del campo cristallino
25
7French (fr)
Théorie du champ cristallin
24
8Arabic (ar)
نظرية المجال البلوري
17
9Ukrainian (uk)
Теорія кристалічного поля
13
10Korean (ko)
결정장 이론
9
More...

Scores

Estimated value for Wikipedia:
Simple English:
Global:
Popularity in June 2025:
Simple English:
Global:
Popularity in all years:
Simple English:
Global:
Authors in June 2025:
Simple English:
Global:
Registered authors in all years:
Simple English:
Global:
Citations:
Simple English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
نظرية المجال البلوري
azAzerbaijani
Kristal sahə nəzəriyyəsi
caCatalan
Teoria del camp cristal·lí
enEnglish
Crystal field theory
esSpanish
Teoría del campo cristalino
faPersian
نظریه میدان بلور
fiFinnish
Kidekenttäteoria
frFrench
Théorie du champ cristallin
idIndonesian
Teori medan kristal
itItalian
Teoria del campo cristallino
jaJapanese
結晶場理論
koKorean
결정장 이론
nlDutch
Kristalveldtheorie
plPolish
Teoria pola krystalicznego
ptPortuguese
Teoria do campo cristalino
ruRussian
Теория кристаллического поля
simpleSimple English
Crystal field theory
thThai
ทฤษฎีสนามผลึก
ukUkrainian
Теорія кристалічного поля
zhChinese
晶体场理论

Popularity rank trends

Best Rank Simple English:
#38539
09.2019
Global:
#60721
11.2016

AI rank trends

Best Rank Simple English:
#7118
12.2018
Global:
#20553
10.2011

Local AI rank history

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Crystal field theory from Wikipedia articles about Ligand field theory, Ligand, Transition metal, Jahn–Teller effect and Spectrochemical series. Whereas reading the article about Crystal field theory people most often go to Wikipedia articles on Ligand field theory, Degenerate energy level, Molecular orbital theory, Spectrochemical series and Ligand.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 15 February 2026

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In Simple English Wikipedia the most popular articles on that day were: XXXTentacion, Black, List of European countries, Jeffrey Epstein, Vitruvian Man, Golden Edge, Jacqueline Kennedy Onassis, List of countries, Manon Bannerman, Megan Skiendiel.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information