Evidence map›Paper›PMID 29765601›Full record

ArticleIUCrJ2018

Survey and analysis of crystal polymorphism in organic structures.

Kortney Kersten, Ramanpreet Kaur, Adam Matzger

Abstract read
In one paragraph

Article in IUCrJ, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. One mol-ecule, three crystal structures: conformational trimorphism ofActa crystallographica. Section E, Crystallographic communications · 2020
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Kortney KerstenDepartment of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, MI 48109, USA.ORCID https://orcid.org/0000-0003-4161-2364
Ramanpreet KaurDepartment of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, MI 48109, USA.
Adam MatzgerDepartment of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, MI 48109, USA.ORCID https://orcid.org/0000-0002-4926-2752

Funding

Improving drug bioavailability through solid form discovery SUPPLEMENTR01GM106180 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MATZGER, ADAM JAY · 2013 to 2016
$1.2M
NIGMS NIH HHS R01 GM106180
6 · The paper itself

Abstract

With the intention of producing the most comprehensive treatment of the prevalence of crystal polymorphism among structurally characterized materials, all polymorphic compounds flagged as such within the Cambridge Structural Database (CSD) are analysed and a list of crystallographically characterized organic polymorphic compounds is assembled. Classifying these structures into subclasses of anhydrates, salts, hydrates, non-hydrated solvates and cocrystals reveals that there are significant variations in polymorphism prevalence as a function of crystal type, a fact which has not previously been recognized in the literature. It is also shown that, as a percentage, polymorphic entries are decreasing temporally within the CSD, with the notable exception of cocrystals, which continue to rise at a rate that is a constant fraction of the overall entries. Some phenomena identified that require additional scrutiny include the relative prevalence of temperature-induced phase transitions among organic salts and the paucity of polymorphism in crystals with three or more chemical components.

Indexed as

Cambridge Structural Databasecocrystalshydratesphase transitionspolymorphs

Identifiers

PMID29765601
PMCPMC5947716

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.