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Investigating the Conformations of a Family of [M2L3]4+ Helicates Using Single Crystal X-ray Diffraction.

ABSTRACT: We present five new dinuclear triple helicate compounds of types [Mn2L3](ClO4)4, [Co2L3](BF4)4, [Ni2L3](BF4)4, [Cu2L3](BF4)4, and [Zn2L3](BF4)4, where L is a previously reported semi-rigid ligand incorporating two α-diimine primary donor groups and two secondary 4-pyridyl donor groups. All complexes have been characterized in both solution and the solid state. Single crystal X-ray diffraction studies were used to probe the variation in the respective helical structures as the coordinated metal ion was altered, including the effect on the orientations of the secondary binding domains. The influence of the metal ion size, the spin state in the case of Fe(II), and the presence of Jahn-Teller distortions on the overall helical structure has been investigated. These results form a basis for the design and construction of new large metallosupramolecular architectures which manifest properties associated with the constituent helical metalloligand units.

SUBMITTER: Wallis MJ 

PROVIDER: S-EPMC9921459 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature

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Investigating the Conformations of a Family of [M<sub>2</sub>L<sub>3</sub>]<sup>4+</sup> Helicates Using Single Crystal X-ray Diffraction.

Wallis Matthew J MJ   Min Hyunsung H   Lindoy Leonard F LF   Li Feng F  

Molecules (Basel, Switzerland) 20230201 3

We present five new dinuclear triple helicate compounds of types [Mn<sub>2</sub><b>L</b><sub>3</sub>](ClO<sub>4</sub>)<sub>4</sub>, [Co<sub>2</sub><b>L</b><sub>3</sub>](BF<sub>4</sub>)<sub>4</sub>, [Ni<sub>2</sub><b>L</b><sub>3</sub>](BF<sub>4</sub>)<sub>4</sub>, [Cu<sub>2</sub><b>L</b><sub>3</sub>](BF<sub>4</sub>)<sub>4</sub>, and [Zn<sub>2</sub><b>L</b><sub>3</sub>](BF<sub>4</sub>)<sub>4</sub>, where <b>L</b> is a previously reported semi-rigid ligand incorporating two α-diimine primary donor  ...[more]

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