化学类期刊较多，但是目前对于评四青以及各种奖，几乎仅看top5%的期刊，所以楼主仅统计下述13种期刊。专业期刊不在统计范围内，因为发再多也不如一篇顶级化学综合类（5篇acs cat.也不及一篇jacs）。ps：if以及期刊实际影响力虽然不完全成正比，但是不论国内还是国外，if仍然作为评价期刊的重要标准之一。虽然争论愈演愈烈，大趋势短时间内无法改变。

谢谢关注和讨论。

计算过程中，仅勾选article 和 review 所以计算值会略低于实际值

june 28, 2018

nature 15.581 (26752/1717)
science 14.442 (22746/1575)
nature chemistry 8.971 (2745/306)
chem 6.099 (921/151)
journal of the american chemical society 5.845 (29364/5024)
acs central science 4.807 (1168/243)
angewandte chemie international edition 4.670 (25009/5333)
science advances 4.620 (5715/1237)
nature communications 4.383 (34409/7850)
chemical science 3.864 (7033/1820)
pnas 3.572 (23034/6448)
chemical communications 2.568 (14680/5716)
chemistry a european journal 2.069 (9355/4522)

july 30, 2018

nature 19.387 (33288/1717)
science 18.056 (28438/1575)
nature chemistry 11.163 (3416/306)
chem 7.795 (1177/151)
journal of the american chemical society 7.339 (36870/5024)
acs central science 5.979 (1453/243)
angewandte chemie international edition 5.896 (31790/5392)
science advances 5.804 (7179/1237)
nature communications 5.512 (43273/7850)
chemical science 4.877 (8877/1820)
pnas 4.442 (28644/6448)
chemical communications 3.158 (18052/5716)
chemistry a european journal 2.575 (11645/4522)

[ last edited by chesterliu on 2018-7-31 at 03:15 ]

aug 28, 2018

nature 22.177 (38078/1717)
science 20.658 (32536/1575)
nature chemistry 12.709 (3889/306)
chem 8.967 (1354/151)
journal of the american chemical society 8.316 (41781/5024)
acs central science 6.807 (1654/243)
angewandte chemie international edition 6.692 (36081/5392)
science advances 6.610 (8176/1237)
nature communications 6.318 (49593/7850)
chemical science 5.495 (10001/1820)
pnas 5.094 (32844/6448)
chemical communications 3.559 (20342/5716)
chemistry a european journal 2.916 (13187/4522)

[ last edited by chesterliu on 2018-8-28 at 10:11 ]

sept. 28, 2018 (考虑non-citable items的引用)
nature 28.313 (48613/1717)
science 26.377 (41544/1575)
nature chemistry 15.467 (4733/306)
chem 11.278 (1703/151)
journal of the american chemical society 9.807 (49270/5024)
acs central science 8.284 (2013/243)
angewandte chemie international edition 7.902 (42610/5392)
science advances 7.897 (9769/1237)
nature communications 7.517 (59006/7850)
chemical science 6.414 (11673/1820)
pnas 6.127 (39509/6448)
chemical communications 4.203 (24027        /5716)
chemistry a european journal 3.451 (15607/4522)

[ last edited by chesterliu on 2018-9-28 at 05:18 ]

oct. 28, 2018 (考虑non-citable items的引用)
nature 31.719 (54461/1717)
science 29.789 (46917/1575)
nature chemistry 17.507 (5357/306)
chem 12.934 (1953/151)
journal of the american chemical society 11.123 (55883/5024)
acs central science 9.514 (2312/243)
angewandte chemie international edition 9.046 (48776/5392)
science advances 8.946 (11066/1237)
nature communications 8.510 (66804/7850)
chemical science 7.268 (13228/1820)
pnas 6.908 (44543/6448)
chemical communications 4.737 (27077        /5716)
chemistry a european journal 3.940 (17818/4522)

[ last edited by chesterliu on 2018-10-27 at 21:09 ]

nov. 28, 2018 (考虑non-citable items的引用)
nature 34.897 (59918/1717)
science 32.896 (51811/1575)
nature chemistry 19.105 (5846/306)
chem 14.437 (2180/151)
journal of the american chemical society 12.308 (61834/5024)
acs central science 10.601 (2576/243)
science advances 9.981 (12346/1237)
angewandte chemie international edition 9.966 (53739/5392)
nature communications 9.438 (74085/7850)
chemical science 8.041 (14635/1820)
pnas 7.673 (49477/6448)
chemical communications 5.233 (29914/5716)
chemistry a european journal 4.336 (19607/4522)

nature energy 43.686 (8213/188)
nature materials 32.427 (10863/335)
advanced materials 20.586 (51485/2501)
joule 14.980 (764/51) (2017年下半年出刊)
advanced functional materials 12.584 (21430/1703)
acs nano 11.602 (29875/2575)

[ last edited by chesterliu on 2018-11-28 at 08:36 ]

dec. 28, 2018 (考虑non-citable items的引用)
nature 38.976 (66921/1717)
science 36.801 (57961/1575)
nature chemistry 21.216 (6492/306)
chem 16.536 (2497/151)
journal of the american chemical society 13.693 (68791/5024)
acs central science 11.679 (2838/243)
science advances 11.188 (13839/1237)
angewandte chemie international edition 11.065 (59665/5392)
nature communications 10.621 (83377/7850)
chemical science 8.914 (16224/1820)
pnas 8.597 (55436/6448)
chemical communications 5.764 (32949/5716)
chemistry a european journal 4.781 (21620/4522)

nature energy 48.548 (9127/188)
nature materials 35.675 (11951/335)
advanced materials 22.575 (56461/2501)
joule (sorry这个月在国内，国内的数据库里搜不出joule)
advanced functional materials 13.788 (23481/1703)
acs nano 12.767 (32875/2575)
nano letters 11.304 (26068/2306)

nature microbiology 12.218 (3751/307)
mbio 5.875 (5164/879)

[ last edited by chesterliu on 2018-12-28 at 20:39 ]

最后一次更新，预计最终if会再上涨0.5-2不等

Jan. 28, 2019 (考虑Non-citable items的引用)

Nature 41.047 (70460/1717)
Science 38.796 (61103/1575)
Nature Chemistry 22.294 (6822/306)
Chem 17.318 (2615/151)
Journal of the American Chemical Society 14.310 (71893/5024)
ACS Central Science 12.243 (2975/243)
Science Advances 11.803 (14600/1237)
Angewandte Chemie International Edition 11.530 (62167/5392)
Nature Communications 11.190 (87844/7850)
Chemical Science 9.276 (16882/1820)
PNAS 9.071 (58492/6448)
Chemical Communications 5.968 (34110/5716)
Chemistry A European Journal 4.977 (22504/4522)

Nature Energy 50.766 (9544/188)
Nature Materials 37.191 (12459/335)
Advanced Materials 23.550 (58898/2501)
Joule 19.314 (985/51)
Advanced Functional Materials 14.351 (24439/1703)
ACS Nano 13.389 (34476/2575)
Nano Letters 11.863 (27355/2306)

Nature Microbiology 12.853 (3946/307)
mBio 6.213 (5461/879)

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