Journal of Physical and Chemical Reference Data

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
Chemistry (miscellaneous)	1997	Q2
Chemistry (miscellaneous)	1998	Q1
Chemistry (miscellaneous)	1999	Q1
Chemistry (miscellaneous)	2000	Q1
Chemistry (miscellaneous)	2001	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	Q2
Chemistry (miscellaneous)	2011	Q1
Chemistry (miscellaneous)	2012	Q1
Chemistry (miscellaneous)	2013	Q1
Chemistry (miscellaneous)	2014	Q2
Chemistry (miscellaneous)	2015	Q1
Chemistry (miscellaneous)	2016	Q2
Physical and Theoretical Chemistry	1997	Q2
Physical and Theoretical Chemistry	1998	Q1
Physical and Theoretical Chemistry	1999	Q1
Physical and Theoretical Chemistry	2000	Q1
Physical and Theoretical Chemistry	2001	Q1
Physical and Theoretical Chemistry	2002	Q1
Physical and Theoretical Chemistry	2003	Q1
Physical and Theoretical Chemistry	2004	Q1
Physical and Theoretical Chemistry	2005	Q2
Physical and Theoretical Chemistry	2006	Q1
Physical and Theoretical Chemistry	2007	Q1
Physical and Theoretical Chemistry	2008	Q1
Physical and Theoretical Chemistry	2009	Q1
Physical and Theoretical Chemistry	2010	Q2
Physical and Theoretical Chemistry	2011	Q2
Physical and Theoretical Chemistry	2012	Q1
Physical and Theoretical Chemistry	2013	Q1
Physical and Theoretical Chemistry	2014	Q2
Physical and Theoretical Chemistry	2015	Q2
Physical and Theoretical Chemistry	2016	Q2
Physics and Astronomy (miscellaneous)	1997	Q2
Physics and Astronomy (miscellaneous)	1998	Q1
Physics and Astronomy (miscellaneous)	1999	Q1
Physics and Astronomy (miscellaneous)	2000	Q1
Physics and Astronomy (miscellaneous)	2001	Q1
Physics and Astronomy (miscellaneous)	2002	Q1
Physics and Astronomy (miscellaneous)	2003	Q1
Physics and Astronomy (miscellaneous)	2004	Q1
Physics and Astronomy (miscellaneous)	2005	Q2
Physics and Astronomy (miscellaneous)	2006	Q1
Physics and Astronomy (miscellaneous)	2007	Q1
Physics and Astronomy (miscellaneous)	2008	Q1
Physics and Astronomy (miscellaneous)	2009	Q1
Physics and Astronomy (miscellaneous)	2010	Q2
Physics and Astronomy (miscellaneous)	2011	Q2
Physics and Astronomy (miscellaneous)	2012	Q1
Physics and Astronomy (miscellaneous)	2013	Q1
Physics and Astronomy (miscellaneous)	2014	Q2
Physics and Astronomy (miscellaneous)	2015	Q2
Physics and Astronomy (miscellaneous)	2016	Q2

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
1999	3.667
2000	5.620
2001	2.326
2002	2.539
2003	3.492
2004	2.871
2005	0.868
2006	1.562
2007	1.829
2008	1.457
2009	1.534
2010	0.728
2011	0.779
2012	1.614
2013	1.216
2014	0.601
2015	0.756
2016	0.666

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)	1999	7.224
Cites / Doc. (4 years)	2000	7.551
Cites / Doc. (4 years)	2001	7.250
Cites / Doc. (4 years)	2002	5.747
Cites / Doc. (4 years)	2003	5.282
Cites / Doc. (4 years)	2004	5.074
Cites / Doc. (4 years)	2005	4.066
Cites / Doc. (4 years)	2006	4.704
Cites / Doc. (4 years)	2007	3.340
Cites / Doc. (4 years)	2008	3.290
Cites / Doc. (4 years)	2009	3.928
Cites / Doc. (4 years)	2010	3.527
Cites / Doc. (4 years)	2011	3.111
Cites / Doc. (4 years)	2012	3.885
Cites / Doc. (4 years)	2013	3.585
Cites / Doc. (4 years)	2014	2.864
Cites / Doc. (4 years)	2015	2.362
Cites / Doc. (4 years)	2016	2.373
Cites / Doc. (3 years)	1999	7.224
Cites / Doc. (3 years)	2000	8.036
Cites / Doc. (3 years)	2001	5.197
Cites / Doc. (3 years)	2002	4.582
Cites / Doc. (3 years)	2003	4.569
Cites / Doc. (3 years)	2004	4.787
Cites / Doc. (3 years)	2005	4.113
Cites / Doc. (3 years)	2006	3.292
Cites / Doc. (3 years)	2007	3.169
Cites / Doc. (3 years)	2008	3.679
Cites / Doc. (3 years)	2009	2.821
Cites / Doc. (3 years)	2010	2.732
Cites / Doc. (3 years)	2011	3.396
Cites / Doc. (3 years)	2012	4.024
Cites / Doc. (3 years)	2013	2.923
Cites / Doc. (3 years)	2014	2.900
Cites / Doc. (3 years)	2015	2.304
Cites / Doc. (3 years)	2016	2.383
Cites / Doc. (2 years)	1999	7.543
Cites / Doc. (2 years)	2000	6.250
Cites / Doc. (2 years)	2001	3.854
Cites / Doc. (2 years)	2002	3.514
Cites / Doc. (2 years)	2003	3.833
Cites / Doc. (2 years)	2004	4.879
Cites / Doc. (2 years)	2005	2.435
Cites / Doc. (2 years)	2006	3.104
Cites / Doc. (2 years)	2007	3.315
Cites / Doc. (2 years)	2008	2.441
Cites / Doc. (2 years)	2009	2.070
Cites / Doc. (2 years)	2010	3.156
Cites / Doc. (2 years)	2011	3.034
Cites / Doc. (2 years)	2012	2.828
Cites / Doc. (2 years)	2013	2.861
Cites / Doc. (2 years)	2014	2.784
Cites / Doc. (2 years)	2015	1.970
Cites / Doc. (2 years)	2016	2.500

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	1999	15
Self Cites	2000	23
Self Cites	2001	7
Self Cites	2002	8
Self Cites	2003	12
Self Cites	2004	9
Self Cites	2005	27
Self Cites	2006	22
Self Cites	2007	13
Self Cites	2008	6
Self Cites	2009	15
Self Cites	2010	7
Self Cites	2011	4
Self Cites	2012	15
Self Cites	2013	25
Self Cites	2014	37
Self Cites	2015	13
Self Cites	2016	0
Total Cites	1999	354
Total Cites	2000	442
Total Cites	2001	317
Total Cites	2002	252
Total Cites	2003	233
Total Cites	2004	225
Total Cites	2005	255
Total Cites	2006	214
Total Cites	2007	263
Total Cites	2008	287
Total Cites	2009	220
Total Cites	2010	153
Total Cites	2011	163
Total Cites	2012	169
Total Cites	2013	152
Total Cites	2014	145
Total Cites	2015	129
Total Cites	2016	143

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	1999	6.918
External Cites per document	2000	7.618
External Cites per document	2001	5.082
External Cites per document	2002	4.436
External Cites per document	2003	4.333
External Cites per document	2004	4.596
External Cites per document	2005	3.677
External Cites per document	2006	2.954
External Cites per document	2007	3.012
External Cites per document	2008	3.603
External Cites per document	2009	2.628
External Cites per document	2010	2.607
External Cites per document	2011	3.313
External Cites per document	2012	3.667
External Cites per document	2013	2.442
External Cites per document	2014	2.160
External Cites per document	2015	2.071
External Cites per document	2016	2.383
Cites per document	1999	7.224
Cites per document	2000	8.036
Cites per document	2001	5.197
Cites per document	2002	4.582
Cites per document	2003	4.569
Cites per document	2004	4.787
Cites per document	2005	4.113
Cites per document	2006	3.292
Cites per document	2007	3.169
Cites per document	2008	3.679
Cites per document	2009	2.821
Cites per document	2010	2.732
Cites per document	2011	3.396
Cites per document	2012	4.024
Cites per document	2013	2.923
Cites per document	2014	2.900
Cites per document	2015	2.304
Cites per document	2016	2.383

% 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
1999	40.00
2000	42.86
2001	42.86
2002	47.06
2003	36.84
2004	16.67
2005	77.27
2006	42.86
2007	40.00
2008	27.27
2009	33.33
2010	47.06
2011	69.23
2012	62.50
2013	64.29
2014	68.18
2015	46.88
2016	47.37

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	1999	0
Non-citable documents	2000	0
Non-citable documents	2001	0
Non-citable documents	2002	0
Non-citable documents	2003	1
Non-citable documents	2004	3
Non-citable documents	2005	4
Non-citable documents	2006	6
Non-citable documents	2007	4
Non-citable documents	2008	4
Non-citable documents	2009	4
Non-citable documents	2010	6
Non-citable documents	2011	6
Non-citable documents	2012	3
Non-citable documents	2013	2
Non-citable documents	2014	1
Non-citable documents	2015	4
Non-citable documents	2016	8
Citable documents	1999	49
Citable documents	2000	55
Citable documents	2001	61
Citable documents	2002	55
Citable documents	2003	51
Citable documents	2004	47
Citable documents	2005	62
Citable documents	2006	65
Citable documents	2007	83
Citable documents	2008	78
Citable documents	2009	78
Citable documents	2010	56
Citable documents	2011	48
Citable documents	2012	42
Citable documents	2013	52
Citable documents	2014	50
Citable documents	2015	56
Citable documents	2016	60

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	1999	12
Uncited documents	2000	15
Uncited documents	2001	18
Uncited documents	2002	16
Uncited documents	2003	15
Uncited documents	2004	15
Uncited documents	2005	19
Uncited documents	2006	30
Uncited documents	2007	38
Uncited documents	2008	36
Uncited documents	2009	29
Uncited documents	2010	24
Uncited documents	2011	18
Uncited documents	2012	14
Uncited documents	2013	17
Uncited documents	2014	12
Uncited documents	2015	26
Uncited documents	2016	25
Cited documents	1999	37
Cited documents	2000	40
Cited documents	2001	43
Cited documents	2002	39
Cited documents	2003	37
Cited documents	2004	35
Cited documents	2005	47
Cited documents	2006	41
Cited documents	2007	49
Cited documents	2008	46
Cited documents	2009	53
Cited documents	2010	38
Cited documents	2011	36
Cited documents	2012	31
Cited documents	2013	37
Cited documents	2014	39
Cited documents	2015	34
Cited documents	2016	43

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Country	United States	79 H Index
Subject Area and Category	Chemistry Chemistry (miscellaneous) Physical and Theoretical Chemistry Physics and Astronomy Physics and Astronomy (miscellaneous)
Publisher	American Institute of Physics
Publication type	Journals
ISSN	00472689, 15297845
Coverage	1976-1979, 1996-ongoing
Scope	Journal of Physical and Chemical Reference Data is published by the American Institute of Physics (AIP) for the National Institute of Standards and Technology (NIST); content is published online daily, collected into quarterly online and printed issues (4 issues per year). The objective of the Journal is to provide critically evaluated physical and chemical property data, fully documented as to the original sources and the criteria used for evaluation, preferably with uncertainty analysis. Critical reviews of measurement techniques may also be included if they shed light on the accuracy of available data in a technical area. (source)