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A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...
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Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.
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Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....
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Organic chemistry is the study of compounds of carbon called organic compounds. Organic compounds either originate from living organisms or are synthesized by chemists. A defining trait of these compounds is the presence of carbon as the principal element, which is bonded to other carbon atoms and other elements such as hydrogen, oxygen, nitrogen, and sulfur. The existence of a wide array of organic molecules is a consequence of carbon atoms’ ability to form up to four strong bonds to...
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Noncovalent attractions are associations within and between molecules that influence the shape and structural stability of complexes. These interactions differ from covalent bonding in that they do not involve sharing of electrons.
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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.
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Functional groups are groups of atoms with specific chemical properties that occur within organic molecules and are sometimes denoted as “R”. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.
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Las estructuras orgánicas enlazadas con hidrógeno como plataforma sintonizable para materiales funcionales

Bin Wang1,2, Rui-Biao Lin2, Zhangjing Zhang1

  • 1Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, P.R. China.

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Las estructuras orgánicas enlazadas con hidrógeno (HOF) son nuevos materiales porosos construidos utilizando enlaces de hidrógeno. Sus propiedades únicas permiten diversas aplicaciones en separación, detección y catálisis.

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Área de la Ciencia:

  • Ciencias de los materiales
  • Química supramolecular

Sus antecedentes:

  • Las estructuras orgánicas enlazadas con hidrógeno (HOF) son materiales cristalinos porosos emergentes.
  • Se autoensamblan a través de enlaces de hidrógeno, distintos de los MOF y los COF.
  • Los HOF ofrecen propiedades únicas como síntesis suave y procesamiento debido a los enlaces H más débiles.

Objetivo del estudio:

  • Revisar los motivos de enlace H utilizados en la construcción de HOF porosos.
  • Para resaltar las diversas aplicaciones de estos HOF.

Principales métodos:

  • Selección juiciosa de los motivos de enlace de hidrógeno.
  • Utilizando otras interacciones débiles como el apilamiento π-π y las fuerzas de van der Waals.
  • Estrategias marco de interpenetración

Principales resultados:

  • Construcción de varios HOF porosos.
  • Demostración de la plataforma sintonizable de los HOF para los materiales funcionales.
  • Identificación de los principales motivos de enlace H y su función en el ensamblaje del marco.

Conclusiones:

  • Los HOF representan una clase versátil de materiales con características únicas.
  • Sus aplicaciones abarcan la separación de gases, la separación quiral, la detección, la catálisis y más.
  • Los HOF tienen un potencial significativo para el desarrollo de materiales funcionales avanzados.