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Related Concept Videos

Coordination Number and Geometry02:57

Coordination Number and Geometry

For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
Predicting Molecular Geometry02:27

Predicting Molecular Geometry

VSEPR Theory for Determination of Electron Pair Geometries
The Seven Crystal Systems: Overview01:24

The Seven Crystal Systems: Overview

Crystals with various point group symmetries belong to different crystal classes, which are synonymous terms. Despite being in the same class, crystals may have distinct shapes, like cubes and octahedra. There are 32 three-dimensional point groups, all of which are systematically divided into seven crystal systems.The basic cubic crystal system, exemplified by NaCl, features orthogonal vectors (α = β = �� = 90°) of equal lengths (a = b = c). When specific requirements are not imposed on the...
Aromatic Hydrocarbon Cations: Structural Overview01:18

Aromatic Hydrocarbon Cations: Structural Overview

Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
Removing one hydrogen from the intervening CH2 group with both...
Valence Bond Theory02:42

Valence Bond Theory

Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
Metallic Solids02:37

Metallic Solids

Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability. Many...

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Related Experiment Video

Updated: Jun 7, 2026

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
06:35

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates

Published on: February 15, 2016

From an eight-component self-sorting algorithm to a trisheterometallic scalene triangle.

Kingsuk Mahata1, Manik Lal Saha, Michael Schmittel

  • 1Center of Micro and Nanochemistry and Engineering, Organische Chemie I, Universität Siegen, Adolf-Reichwein-Str. 2, D-57068 Siegen, Germany.

Journal of the American Chemical Society
|October 27, 2010
PubMed
Summary
This summary is machine-generated.

Researchers designed a dynamic trisheterometallic scalene triangle using self-sorting motifs. This complex supramolecular structure expands the known library of triangular architectures.

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Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
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Published on: November 28, 2016

Area of Science:

  • Supramolecular Chemistry
  • Materials Science

Background:

  • The field of supramolecular chemistry focuses on the design and synthesis of complex molecular architectures.
  • Existing triangular supramolecular structures are limited in their diversity and complexity.

Purpose of the Study:

  • To design and fabricate a novel, fully dynamic trisheterometallic scalene triangle.
  • To expand the repertoire of known triangular supramolecular structures.

Main Methods:

  • Utilizing motifs derived from 3-fold completive self-sorting principles.
  • Employing an eight-component library for the construction of the target structure.

Main Results:

  • Successful design and fabrication of a fully dynamic trisheterometallic scalene triangle.
  • Demonstration of a complex supramolecular assembly complementing existing triangular structures.

Conclusions:

  • The study presents a new, highly dynamic triangular supramolecular structure.
  • The employed self-sorting strategy is effective for constructing complex, multi-component architectures.