English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In the asymmetric unit of the title compound, [CrCl 2 (C 10 H 24 N 4 )][Cr(C 2 O 4 )(C 10 H 24 N 4 )](ClO 4 ) 2 (C 10 H 24 N 4 = 1,4,8,11-tetra-aza-cyclo-tetra-decane, cyclam; C 2 O 4 = oxalate, ox), there are two independent halves of the [CrCl 2 (cyclam)] + and [Cr(ox)(cyclam)] + cations, and one perchlorate anion. In the complex cations, which are completed by application of twofold rotation symmetry, the Cr III ions are coordinated by the four N atoms of a cyclam ligand, and by two chloride ions or one oxalate bidentate ligand in a cis arrangement, displaying an overall distorted octa-hedral coordination environment. The Cr-N(cyclam) bond lengths are in the range of 2.075 (5) to 2.096 (4) Å while the Cr-Cl and Cr-O(ox) bond lengths are 2.3358 (14) and 1.956 (4) Å, respectively. Both cyclam moieties adopt the cis -V conformation. The slightly distorted tetra-hedral ClO 4  - anion remains outside the coordination sphere. The supra-molecular architecture includes N-H⋯O and N-H⋯Cl hydrogen bonding between cyclam NH donor groups, O atoms of the oxalate ligand or ClO 4  - anions and one Cl ligand as acceptors, leading to a three-dimensional network structure.

acta crystallographica. section e, crystallographic communications

Crystal structure ofcis-dichlorido(1,4,8,11-tetraazacyclotetradecane-κ4N)chromium(III) (oxalato-κ2O1,O2)(1,4,8,11-tetraazacyclotetradecane-κ4N)chromium(III) bis(perchlorate) from synchrotron data