True and quasi-isomorphism in tetrakis(acetonitrile)coinage metal(i) salts

Bąk, Joanna M.; Effendy, H.; Grabowsky, Simon; Lindoy, Leonard F.; Price, Jason R.; Skelton, Brian W.; White, Allan H. (2013). True and quasi-isomorphism in tetrakis(acetonitrile)coinage metal(i) salts. CrystEngComm, 15(6), pp. 1125-1138. Royal Society of Chemistry 10.1039/C2CE26824H

[img] Text
022_Bak2013_CrystEngComm.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (2MB) | Request a copy

Salts of the family [M(NCMe)4]+X− (M = Cu, Ag; X− = [BF4]−, [ClO4]−, [PF6]− crystallize in the space groups Pna21 or P212121 with very similar cell dimensions. This gives rise to two sets of true isomorphs (four members in Pna21, two in P212121), and a solvated species (Cu/PF6/MeCN) with a distorted P212121 lattice. Across the two space groups and regardless of the choice of metal atom or anion, the underlying basic structures are virtually identical in the six unsolvated cases, consisting of alternate sheets of cations and anions, mainly held together by C–H⋯C,N and C,N⋯C,N interactions, and a columnar cation–anion motif perpendicular to the sheets maintained by C–H⋯F,O interactions. The pair of concomitant polymorphs found with Cu/BF4 in both Pna21 and P212121 can readily be described as being quasi-isomorphous. Using a Hirshfeld surface approach and a tri-cationic structural synthon extracted from the asymmetric units, the common underlying pattern of close intercomponent approaches has been analysed and quantified. The structure of the Ag/PF6 complex is new; low-temperature redeterminations are recorded for the Ag/ClO4 and the Cu/PF6/MeCN complexes.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Grabowsky, Simon

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

ISSN:

1466-8033

Publisher:

Royal Society of Chemistry

Language:

English

Submitter:

Simon Grabowsky

Date Deposited:

06 Feb 2020 09:43

Last Modified:

06 Feb 2020 09:43

Publisher DOI:

10.1039/C2CE26824H

BORIS DOI:

10.7892/boris.138480

URI:

https://boris.unibe.ch/id/eprint/138480

Actions (login required)

Edit item Edit item
Provide Feedback