Transition Metals in Supramolecular Chemistry

Fabbrizzi, Luigi; Poggi, Antonio

doi:10.1007/978-94-015-8380-0

Cited by 46 publications

References 40 publications

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Ligand Synthesis and Metal Complex Formation of 1,2,3-Triaminopropane

Zimmer

Müller

Reiß

et al. 1998

Eur. J. Inorg. Chem.

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A series of linear primary polyamines H2N–CH2–(CH–NH2)n–CH2–NH2 (1 ≤ n ≤ 3) was prepared from the corresponding polyalcohols. The polyamines were isolated as HCl adducts and the acidity constants in aqueous solution were determined. The crystal structure of the fully protonated tetraamine (n = 2) was elucidated by an X‐ray diffraction study. Complex formation of the triamine (n = 1) with Ni2+, Cu2+, Zn2+, Cd2+ was re‐investigated in aqueous solution. The pH‐dependent formation of a variety of species MxLyHz was established by potentiometric titrations and was compared with previous reports. The crystal structure of the Cu complex [CuL2]Cl2 exhibited a chain structure with a five‐coordinate CuII centre in which two amino groups of the triamine ligands are coordinated to one Cu centre, while the third amino group of one of the ligands is bonded to a neighbouring Cu atom. The compound shows weak antiferromagnetic coupling interactions between the CuII centres within the chain.

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Ligand Synthesis and Metal Complex Formation of 1,2,3-Triaminopropane

Zimmer

Müller

Reiß

et al. 1998

Eur. J. Inorg. Chem.

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Dynamic Stereochemistry and Chiroptical Spectroscopy of Metallo‐Organic Compounds

Canary

Dai

2012

Comprehensive Chiroptical Spectroscopy

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Transition Metal‐Incorporating Catenanes

Fujita¹

1999

Molecular Catenanes, Rotaxanes and Knots

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In this chapter, the preparation of metal-incorporating catenanes by self-assembly is discussed. Self-assembly phenomena have provided new concepts and methodologies for constructing highly ordered and functionalized molecules and materials [l]. In particular, the use of transition metal ions to direct the self-assembly processes has become a rapidly growing discipline and triggered extensive studies on the formation of such complex structures as helicates, chains, ladders, grids, macrocycles, catenanes, and cages [2]. In order to exploit this rapidly growing field, it is necessary to understand non-covalent interactions (e.g. aromatic interactions, hydrogen-bonding, metal coordination, etc.) because cooperation of a variety of non-covalent interactions is essential in the design and realization of wellorganized self-assembling molecular systems.Interlocking compounds incorporating metals are good target for this purpose because there are many factors to be studied for understanding their self-assembly processes: i.e., cooperation of different bonds (covalent, coordinate, and non-covalent), thermodynamic balance (entropy in relation to enthalpy), and electronic and steric matching. Actually, recent extensive studies on non-covalent interactions have enabled chemists to design and realize the self-assembly of interlocked compounds which used to be the target of synthetic challenge [3]. Among several methods developed recently, metal-mediated self-assembly strategy provides a very efficient method for the construction of catenanes. In this chapter, such selfassembled catenanes incorporating metal ions are discussed with emphasis on the cooperation of coordinate bonds and weak interactions. The preparation of fully organic catenanes via self-assembly process, particularly those developed by Sauvage [4], Stoddart [5] , Hunter [6], Vogtle [7], Leigh [8], and others [9], is of course attracting considerable current interest and is well described in other chapters (Figure 1).

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Transition Metals in Supramolecular Chemistry

Cited by 46 publications

References 40 publications

Ligand Synthesis and Metal Complex Formation of 1,2,3-Triaminopropane

Ligand Synthesis and Metal Complex Formation of 1,2,3-Triaminopropane

Dynamic Stereochemistry and Chiroptical Spectroscopy of Metallo‐Organic Compounds

Transition Metal‐Incorporating Catenanes

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