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

The synthesis and characterization of 4′-(4- n -propoxyphenyl)-3,2′:6′,3″-terpyridine is described. Five 2D-coordination networks have been isolated by crystal growth at room temperature from reactions of Co(NCS) 2  with 4′-(4- n -alkyloxyphenyl)-3,2′:6′,3″-terpyridines in which the  n -alkyl group is ethyl,  n -propyl,  n -butyl,  n -pentyl and  n -hexyl in ligands  2 – 6 , respectively. The single-crystal structures of [{Co( 2 ) 2 (NCS) 2 }  .  0.6CHCl 3 ]  n  , [{Co( 3 ) 2 (NCS) 2 }  .  4CHCl 3   .  0.25H 2 O]  n  , [{Co( 4 ) 2 (NCS) 2 }  .  4CHCl 3 ]  n  , [Co 2 ( 5 ) 4 (NCS) 4 ]  n   and [Co( 6 ) 2 (NCS) 2 ]  n   have been determined, and powder X-ray diffraction has demonstrated that the single-crystal structures are representative of the bulk materials. Each compound possesses a (4,4) net with Co centres as 4-connecting nodes. For the assemblies containing  2 ,  3  and  4 , the (4,4) net comprises two geometrically different rhombuses, and the nets pack in an ABAB... arrangement with cone-like arrangements of  n -alkyloxyphenyl groups being accommodated in a similar unit in an adjacent net. An increase in the  n -alkyloxy chain length has two consequences: there is a change in the conformation of the 3,2′:6′,3″-tpy metal-binding domain, and the (4,4) net comprises identical rhombuses. Similarities and differences between the assemblies with ligands  2 – 6  and the previously reported [{Co( 1 ) 2 (NCS) 2 }  .  3MeOH]  n   and [{Co( 1 ) 2 (NCS) 2 }  .  2.2CHCl 3 ]  n   in which  1  is 4′-(4-methoxyphenyl)-3,2′:6′,3″-terpyridine are discussed. The results demonstrate the effects of combining a variable chain length in the 4′-(4- n -alkyloxyphenyl) substituents of 3,2′:6′,3″-tpy and a conformationally flexible 3,2′:6′,3″-tpy metal-binding domain.

molecules/molecules online/molecules annual

Directing 2D-Coordination Networks: Combined Effects of a Conformationally Flexible 3,2′:6′,3″-Terpyridine and Chain Length Variation in 4′-(4-n-Alkyloxyphenyl) Substituents