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Related Concept Videos

Hydroboration-Oxidation of Alkenes03:08

Hydroboration-Oxidation of Alkenes

In addition to the oxymercuration–demercuration method, which converts the alkenes to alcohols with Markovnikov orientation, a complementary hydroboration-oxidation method yields the anti-Markovnikov product. The hydroboration reaction, discovered in 1959 by H.C. Brown, involves the addition of a B–H bond of borane to an alkene giving an organoborane intermediate. The oxidation of this intermediate with basic hydrogen peroxide forms an alcohol.
Ionic Crystal Structures02:42

Ionic Crystal Structures

Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Alkynes to Aldehydes and Ketones: Hydroboration-Oxidation02:47

Alkynes to Aldehydes and Ketones: Hydroboration-Oxidation

Introduction
One of the convenient methods for the preparation of aldehydes and ketones is via hydration of alkynes. Hydroboration-oxidation of alkynes is an indirect hydration reaction in which an alkyne is treated with borane followed by oxidation with alkaline peroxide to form an enol that rapidly converts into an aldehyde or a ketone. Terminal alkynes form aldehydes, whereas internal alkynes give ketones as the final product.
Properties of Organometallic Compounds01:23

Properties of Organometallic Compounds

Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
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...
Structural Isomerism02:34

Structural Isomerism

Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...

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Related Experiment Video

Updated: Jun 24, 2026

Discovery and Synthesis Optimization of Isoreticular Al(III) Phosphonate-Based Metal-Organic Framework Compounds Using High-Throughput Methods
07:20

Discovery and Synthesis Optimization of Isoreticular Al(III) Phosphonate-Based Metal-Organic Framework Compounds Using High-Throughput Methods

Published on: October 6, 2023

Aluminoborates with open frameworks: syntheses, structures, and properties.

Cheng Rong1, Zhiwu Yu, Qiang Wang

  • 1State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.

Inorganic Chemistry
|April 14, 2009
PubMed
Summary
This summary is machine-generated.

Five novel aluminoborate compounds were synthesized and characterized, revealing unique channel structures and promising nonlinear optical (NLO) properties for semiconductor applications.

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Synthesis and Characterization of Functionalized Metal-organic Frameworks
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Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

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Synthesis and Characterization of Functionalized Metal-organic Frameworks
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Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

Area of Science:

  • Inorganic Chemistry
  • Materials Science
  • Solid-State Chemistry

Background:

  • Aluminoborates are a class of inorganic compounds with diverse structures and potential applications.
  • Hydrothermal synthesis offers a versatile route for creating novel crystalline materials.
  • Understanding the structure-property relationships in aluminoborates is crucial for developing new functional materials.

Purpose of the Study:

  • To synthesize and structurally characterize five new aluminoborate compounds.
  • To investigate the optical and electronic properties of these novel materials.
  • To explore their potential for nonlinear optical (NLO) applications and as wide-band-gap semiconductors.

Main Methods:

  • Hydrothermal synthesis
  • Elemental analysis
  • Infrared (IR) spectroscopy
  • Thermogravimetric (TG) analysis
  • Magic Angle Spinning Nuclear Magnetic Resonance (MAS NMR) spectroscopy
  • UV-Vis and fluorescence spectroscopy
  • Powder and single-crystal X-ray diffraction
  • Nonlinear optical (NLO) determination
  • Electronic structure calculations

Main Results:

  • Five aluminoborates with varying structures and compositions were successfully synthesized.
  • Structural analysis revealed diverse channel systems (12-, 11-, and 8-MR) and topological nets (CrB(4), 4(12)6(3)).
  • Compounds 2-5 exhibited acentric structures, good second-harmonic generation (SHG) properties, and were identified as wide-band-gap semiconductors via UV-Vis spectroscopy.

Conclusions:

  • The synthesized aluminoborates possess intricate structures with potential for NLO applications.
  • The presence of acentric structures and wide band gaps suggests utility in optoelectronic devices.
  • Further research into these materials could lead to advancements in semiconductor and NLO technologies.