Chemical Record

The Chemical Record (TCR) is a "highlights" journal publishing timely and critical overviews of new developments at the cutting edge of chemistry of interest to a wide audience of chemists (2013 journal impact factor: 5.577). The scope of published reviews includes all areas related to physical chemistry, analytical chemistry, inorganic chemistry, organic chemistry, polymer chemistry, materials chemistry, bioorganic chemistry, biochemistry, biotechnology and medicinal chemistry as well as interdisciplinary fields. TCR provides carefully selected highlight papers by leading researchers that introduce the author's own experimental and theoretical results in a framework designed to establish perspectives with earlier and contemporary work and provide a critical review of the present state of the subject. The articles are intended to present concise evaluations of current trends in chemistry research to help chemists gain useful insights into fields outside their specialization and provide experts with summaries of recent key developments.

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Quartiles

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Category	Year	Quartile
Biochemistry	2002	Q2
Biochemistry	2003	Q2
Biochemistry	2004	Q2
Biochemistry	2005	Q1
Biochemistry	2006	Q1
Biochemistry	2007	Q1
Biochemistry	2008	Q1
Biochemistry	2009	Q1
Biochemistry	2010	Q1
Biochemistry	2011	Q1
Biochemistry	2012	Q1
Biochemistry	2013	Q1
Biochemistry	2014	Q1
Biochemistry	2015	Q1
Biochemistry	2016	Q1
Biochemistry	2017	Q1
Biochemistry	2018	Q1
Biochemistry	2019	Q1
Biochemistry	2020	Q1
Biochemistry	2021	Q1
Biochemistry (medical)	2002	Q1
Biochemistry (medical)	2003	Q1
Biochemistry (medical)	2004	Q1
Biochemistry (medical)	2005	Q1
Biochemistry (medical)	2006	Q1
Biochemistry (medical)	2007	Q1
Biochemistry (medical)	2008	Q1
Biochemistry (medical)	2009	Q1
Biochemistry (medical)	2010	Q1
Biochemistry (medical)	2011	Q1
Biochemistry (medical)	2012	Q1
Biochemistry (medical)	2013	Q1
Biochemistry (medical)	2014	Q1
Biochemistry (medical)	2015	Q1
Biochemistry (medical)	2016	Q1
Biochemistry (medical)	2017	Q1
Biochemistry (medical)	2018	Q1
Biochemistry (medical)	2019	Q1
Biochemistry (medical)	2020	Q1
Biochemistry (medical)	2021	Q1
Chemical Engineering (miscellaneous)	2002	Q1
Chemical Engineering (miscellaneous)	2003	Q1
Chemical Engineering (miscellaneous)	2004	Q1
Chemical Engineering (miscellaneous)	2005	Q1
Chemical Engineering (miscellaneous)	2006	Q1
Chemical Engineering (miscellaneous)	2007	Q1
Chemical Engineering (miscellaneous)	2008	Q1
Chemical Engineering (miscellaneous)	2009	Q1
Chemical Engineering (miscellaneous)	2010	Q1
Chemical Engineering (miscellaneous)	2011	Q1
Chemical Engineering (miscellaneous)	2012	Q1
Chemical Engineering (miscellaneous)	2013	Q1
Chemical Engineering (miscellaneous)	2014	Q1
Chemical Engineering (miscellaneous)	2015	Q1
Chemical Engineering (miscellaneous)	2016	Q1
Chemical Engineering (miscellaneous)	2017	Q1
Chemical Engineering (miscellaneous)	2018	Q1
Chemical Engineering (miscellaneous)	2019	Q1
Chemical Engineering (miscellaneous)	2020	Q1
Chemical Engineering (miscellaneous)	2021	Q1
Chemistry (miscellaneous)	2002	Q1
Chemistry (miscellaneous)	2003	Q1
Chemistry (miscellaneous)	2004	Q1
Chemistry (miscellaneous)	2005	Q1
Chemistry (miscellaneous)	2006	Q1
Chemistry (miscellaneous)	2007	Q1
Chemistry (miscellaneous)	2008	Q1
Chemistry (miscellaneous)	2009	Q1
Chemistry (miscellaneous)	2010	Q1
Chemistry (miscellaneous)	2011	Q1
Chemistry (miscellaneous)	2012	Q1
Chemistry (miscellaneous)	2013	Q1
Chemistry (miscellaneous)	2014	Q1
Chemistry (miscellaneous)	2015	Q1
Chemistry (miscellaneous)	2016	Q1
Chemistry (miscellaneous)	2017	Q1
Chemistry (miscellaneous)	2018	Q1
Chemistry (miscellaneous)	2019	Q1
Chemistry (miscellaneous)	2020	Q1
Chemistry (miscellaneous)	2021	Q1
Materials Chemistry	2002	Q2
Materials Chemistry	2003	Q1
Materials Chemistry	2004	Q1
Materials Chemistry	2005	Q1
Materials Chemistry	2006	Q1
Materials Chemistry	2007	Q1
Materials Chemistry	2008	Q1
Materials Chemistry	2009	Q1
Materials Chemistry	2010	Q1
Materials Chemistry	2011	Q1
Materials Chemistry	2012	Q1
Materials Chemistry	2013	Q1
Materials Chemistry	2014	Q1
Materials Chemistry	2015	Q1
Materials Chemistry	2016	Q1
Materials Chemistry	2017	Q1
Materials Chemistry	2018	Q1
Materials Chemistry	2019	Q1
Materials Chemistry	2020	Q1
Materials Chemistry	2021	Q1
Medicine (miscellaneous)	2002	Q1
Medicine (miscellaneous)	2003	Q1
Medicine (miscellaneous)	2004	Q1
Medicine (miscellaneous)	2005	Q1
Medicine (miscellaneous)	2006	Q1
Medicine (miscellaneous)	2007	Q1
Medicine (miscellaneous)	2008	Q1
Medicine (miscellaneous)	2009	Q1
Medicine (miscellaneous)	2010	Q1
Medicine (miscellaneous)	2011	Q1
Medicine (miscellaneous)	2012	Q1
Medicine (miscellaneous)	2013	Q1
Medicine (miscellaneous)	2014	Q1
Medicine (miscellaneous)	2015	Q1
Medicine (miscellaneous)	2016	Q1
Medicine (miscellaneous)	2017	Q1
Medicine (miscellaneous)	2018	Q1
Medicine (miscellaneous)	2019	Q1
Medicine (miscellaneous)	2020	Q1
Medicine (miscellaneous)	2021	Q1

SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Year	SJR
2002	0.791
2003	1.029
2004	1.310
2005	1.873
2006	1.979
2007	1.768
2008	1.734
2009	1.697
2010	2.104
2011	1.923
2012	2.385
2013	2.161
2014	1.902
2015	1.776
2016	1.764
2017	1.814
2018	1.654
2019	1.589
2020	1.610
2021	1.420

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Year	Documents
2001	39
2002	35
2003	22
2004	39
2005	33
2006	32
2007	34
2008	31
2009	19
2010	39
2011	24
2012	35
2013	30
2014	70
2015	75
2016	170
2017	70
2018	121
2019	150
2020	86
2021	227

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per document	Year	Value
Cites / Doc. (4 years)	2001	0.000
Cites / Doc. (4 years)	2002	1.615
Cites / Doc. (4 years)	2003	2.459
Cites / Doc. (4 years)	2004	3.010
Cites / Doc. (4 years)	2005	3.933
Cites / Doc. (4 years)	2006	3.992
Cites / Doc. (4 years)	2007	4.016
Cites / Doc. (4 years)	2008	4.145
Cites / Doc. (4 years)	2009	3.862
Cites / Doc. (4 years)	2010	4.491
Cites / Doc. (4 years)	2011	4.724
Cites / Doc. (4 years)	2012	5.088
Cites / Doc. (4 years)	2013	5.179
Cites / Doc. (4 years)	2014	4.922
Cites / Doc. (4 years)	2015	4.201
Cites / Doc. (4 years)	2016	3.757
Cites / Doc. (4 years)	2017	4.104
Cites / Doc. (4 years)	2018	4.522
Cites / Doc. (4 years)	2019	5.358
Cites / Doc. (4 years)	2020	5.339
Cites / Doc. (4 years)	2021	6.733
Cites / Doc. (3 years)	2001	0.000
Cites / Doc. (3 years)	2002	1.615
Cites / Doc. (3 years)	2003	2.459
Cites / Doc. (3 years)	2004	3.010
Cites / Doc. (3 years)	2005	3.990
Cites / Doc. (3 years)	2006	4.309
Cites / Doc. (3 years)	2007	3.740
Cites / Doc. (3 years)	2008	3.677
Cites / Doc. (3 years)	2009	3.794
Cites / Doc. (3 years)	2010	4.857
Cites / Doc. (3 years)	2011	4.831
Cites / Doc. (3 years)	2012	5.220
Cites / Doc. (3 years)	2013	5.000
Cites / Doc. (3 years)	2014	4.989
Cites / Doc. (3 years)	2015	4.252
Cites / Doc. (3 years)	2016	3.451
Cites / Doc. (3 years)	2017	4.219
Cites / Doc. (3 years)	2018	4.860
Cites / Doc. (3 years)	2019	5.623
Cites / Doc. (3 years)	2020	5.710
Cites / Doc. (3 years)	2021	6.754
Cites / Doc. (2 years)	2001	0.000
Cites / Doc. (2 years)	2002	1.615
Cites / Doc. (2 years)	2003	2.459
Cites / Doc. (2 years)	2004	2.947
Cites / Doc. (2 years)	2005	3.836
Cites / Doc. (2 years)	2006	4.028
Cites / Doc. (2 years)	2007	2.754
Cites / Doc. (2 years)	2008	3.652
Cites / Doc. (2 years)	2009	3.877
Cites / Doc. (2 years)	2010	5.000
Cites / Doc. (2 years)	2011	4.310
Cites / Doc. (2 years)	2012	4.349
Cites / Doc. (2 years)	2013	5.102
Cites / Doc. (2 years)	2014	5.169
Cites / Doc. (2 years)	2015	3.450
Cites / Doc. (2 years)	2016	3.662
Cites / Doc. (2 years)	2017	4.600
Cites / Doc. (2 years)	2018	5.029
Cites / Doc. (2 years)	2019	5.906
Cites / Doc. (2 years)	2020	5.756
Cites / Doc. (2 years)	2021	6.784

Total Cites

Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Cites	Year	Value
Self Cites	2001	0
Self Cites	2002	1
Self Cites	2003	2
Self Cites	2004	1
Self Cites	2005	0
Self Cites	2006	3
Self Cites	2007	0
Self Cites	2008	1
Self Cites	2009	0
Self Cites	2010	1
Self Cites	2011	1
Self Cites	2012	4
Self Cites	2013	17
Self Cites	2014	21
Self Cites	2015	59
Self Cites	2016	19
Self Cites	2017	10
Self Cites	2018	7
Self Cites	2019	39
Self Cites	2020	37
Self Cites	2021	35
Total Cites	2001	0
Total Cites	2002	63
Total Cites	2003	182
Total Cites	2004	289
Total Cites	2005	383
Total Cites	2006	405
Total Cites	2007	389
Total Cites	2008	364
Total Cites	2009	368
Total Cites	2010	408
Total Cites	2011	430
Total Cites	2012	428
Total Cites	2013	490
Total Cites	2014	444
Total Cites	2015	574
Total Cites	2016	604
Total Cites	2017	1329
Total Cites	2018	1531
Total Cites	2019	2030
Total Cites	2020	1947
Total Cites	2021	2411

External Cites per Doc

Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

Cites	Year	Value
External Cites per document	2001	0
External Cites per document	2002	1.590
External Cites per document	2003	2.432
External Cites per document	2004	3.032
External Cites per document	2005	4.032
External Cites per document	2006	4.323
External Cites per document	2007	3.777
External Cites per document	2008	3.704
External Cites per document	2009	3.833
External Cites per document	2010	4.845
External Cites per document	2011	5.107
External Cites per document	2012	5.579
External Cites per document	2013	5.375
External Cites per document	2014	5.159
External Cites per document	2015	4.087
External Cites per document	2016	3.656
External Cites per document	2017	4.426
External Cites per document	2018	5.080
External Cites per document	2019	5.640
External Cites per document	2020	5.770
External Cites per document	2021	6.867
Cites per document	2001	0.000
Cites per document	2002	1.615
Cites per document	2003	2.459
Cites per document	2004	3.010
Cites per document	2005	3.990
Cites per document	2006	4.309
Cites per document	2007	3.740
Cites per document	2008	3.677
Cites per document	2009	3.794
Cites per document	2010	4.857
Cites per document	2011	4.831
Cites per document	2012	5.220
Cites per document	2013	5.000
Cites per document	2014	4.989
Cites per document	2015	4.252
Cites per document	2016	3.451
Cites per document	2017	4.219
Cites per document	2018	4.860
Cites per document	2019	5.623
Cites per document	2020	5.710
Cites per document	2021	6.754

% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

Year	International Collaboration
2001	10.26
2002	5.71
2003	72.73
2004	71.79
2005	21.21
2006	9.38
2007	14.71
2008	6.45
2009	15.79
2010	0.00
2011	12.50
2012	14.29
2013	13.33
2014	11.43
2015	13.33
2016	14.71
2017	7.14
2018	23.14
2019	20.67
2020	32.56
2021	18.06

Citable documents

Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Documents	Year	Value
Non-citable documents	2001	0
Non-citable documents	2002	0
Non-citable documents	2003	0
Non-citable documents	2004	1
Non-citable documents	2005	1
Non-citable documents	2006	1
Non-citable documents	2007	1
Non-citable documents	2008	1
Non-citable documents	2009	1
Non-citable documents	2010	0
Non-citable documents	2011	5
Non-citable documents	2012	6
Non-citable documents	2013	10
Non-citable documents	2014	7
Non-citable documents	2015	9
Non-citable documents	2016	15
Non-citable documents	2017	17
Non-citable documents	2018	15
Non-citable documents	2019	8
Non-citable documents	2020	10
Non-citable documents	2021	11
Citable documents	2001	0
Citable documents	2002	39
Citable documents	2003	74
Citable documents	2004	95
Citable documents	2005	95
Citable documents	2006	93
Citable documents	2007	103
Citable documents	2008	98
Citable documents	2009	96
Citable documents	2010	84
Citable documents	2011	84
Citable documents	2012	76
Citable documents	2013	88
Citable documents	2014	82
Citable documents	2015	126
Citable documents	2016	160
Citable documents	2017	298
Citable documents	2018	300
Citable documents	2019	353
Citable documents	2020	331
Citable documents	2021	346

Cited documents

Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Documents	Year	Value
Uncited documents	2001	0
Uncited documents	2002	14
Uncited documents	2003	18
Uncited documents	2004	22
Uncited documents	2005	14
Uncited documents	2006	18
Uncited documents	2007	19
Uncited documents	2008	16
Uncited documents	2009	17
Uncited documents	2010	10
Uncited documents	2011	17
Uncited documents	2012	12
Uncited documents	2013	18
Uncited documents	2014	16
Uncited documents	2015	20
Uncited documents	2016	47
Uncited documents	2017	53
Uncited documents	2018	45
Uncited documents	2019	35
Uncited documents	2020	40
Uncited documents	2021	31
Cited documents	2001	0
Cited documents	2002	25
Cited documents	2003	56
Cited documents	2004	74
Cited documents	2005	82
Cited documents	2006	76
Cited documents	2007	85
Cited documents	2008	83
Cited documents	2009	80
Cited documents	2010	74
Cited documents	2011	72
Cited documents	2012	70
Cited documents	2013	80
Cited documents	2014	73
Cited documents	2015	115
Cited documents	2016	128
Cited documents	2017	262
Cited documents	2018	270
Cited documents	2019	326
Cited documents	2020	301
Cited documents	2021	326