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Solubility of Ionic Compounds02:55

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Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.
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Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond.
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Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond. Elements are classified as atomic or molecular based on the nature of their basic units.
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In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
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New Copper Compounds with Antiplatelet Aggregation Activity.

Mirthala Flores-García1, Juan Manuel Fernández-G2, Cristina Busqueta-Griera2

  • 1Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Tlalpan 14080, Ciudad de México, Mexico.

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|February 26, 2019
PubMed
Summary
This summary is machine-generated.

Novel Schiff base copper(II) complexes show promising antiplatelet aggregation activity. Compound C2 demonstrated the strongest effect, offering a potential new strategy for treating thrombosis without adverse bleeding events.

Keywords:
Copper(II) complexesSchiff baseX-ray crystallographyX-ray diffractionantiplatelet activitypolyphosphates.

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Area of Science:

  • Coordination Chemistry
  • Medicinal Chemistry
  • Biochemistry

Background:

  • Thrombotic events like ischemic heart disease and stroke are leading causes of death.
  • Platelet aggregation, influenced by polyphosphates (PolyP), plays a crucial role in thrombosis.
  • Schiff base copper(II) complexes offer potential interactions with polyphosphates.

Purpose of the Study:

  • To investigate the antiplatelet aggregating properties of novel tridentate Schiff base ligands and their copper(II) complexes.
  • To explore the potential of these complexes as therapeutic agents against thrombosis.

Main Methods:

  • Synthesis and characterization of Schiff base ligands (L1, L2) and copper(II) complexes (C1, C2) using various spectroscopic techniques (UV-Visible, IR, far IR, NMR, EPR) and X-ray diffraction.
  • Evaluation of the antiplatelet aggregation activities of all synthesized compounds.

Main Results:

  • X-ray diffraction and NMR studies confirmed the enol-imine tautomeric form of ligands and square planar geometry of copper(II) complexes.
  • EPR studies corroborated the solid-state geometry of the complexes.
  • Compound C2 exhibited the most potent antiplatelet aggregation activity.

Conclusions:

  • Schiff base copper(II) complexes show potential for treating thrombosis by inhibiting polyphosphate activity.
  • These complexes may offer a novel anticoagulant approach with a favorable safety profile, avoiding adverse bleeding events.