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Cis Pent 2 En

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Understanding Cis-Pent-2-ene: A Simplified Guide



Cis-pent-2-ene is an organic compound, a type of hydrocarbon specifically classified as an alkene. Understanding its name and properties requires a basic grasp of organic chemistry nomenclature, but we'll break down the complexities to make it accessible. This article will dissect the name, explore its structure and isomerism, discuss its properties, and delve into potential applications.

Deconstructing the Name: Cis-Pent-2-ene



The name "cis-pent-2-ene" provides a wealth of information about the molecule's structure:

Pent-: This prefix indicates the presence of five carbon atoms in the molecule's backbone (penta- means five).
-ene: This suffix signifies the presence of a carbon-carbon double bond (C=C), which is characteristic of alkenes. This double bond introduces unsaturation into the molecule, meaning it doesn't have the maximum number of hydrogen atoms possible for its carbon count.
-2-: This number indicates the position of the double bond. The double bond is located between the second and third carbon atoms in the chain. Numbering starts from the end of the chain closest to the double bond.
Cis-: This prefix refers to the spatial arrangement of the atoms around the double bond. "Cis" means "on the same side". In cis-pent-2-ene, the two methyl groups (CH3) attached to the double-bonded carbons are on the same side of the double bond.

Isomerism: The Importance of Arrangement



Cis-pent-2-ene is an example of a geometric isomer. Geometric isomers, also known as cis-trans isomers, have the same molecular formula but differ in the spatial arrangement of their atoms. The alternative to cis-pent-2-ene is trans-pent-2-ene, where the two methyl groups are on opposite sides of the double bond. This seemingly small difference significantly impacts the molecule's properties.

For example, consider the following analogy: imagine two cars parked side-by-side in a garage (cis). Now imagine the same cars parked one behind the other (trans). While they are both cars in the same garage, their relative positions (spatial arrangement) differ. Similarly, the cis and trans isomers of pent-2-ene have different physical and sometimes chemical properties.

Properties of Cis-Pent-2-ene



Cis-pent-2-ene is a colorless liquid at room temperature with a slightly sweet odor. Its specific properties, such as boiling point and density, are distinct from those of trans-pent-2-ene due to differences in their molecular shapes. The cis isomer, due to the positioning of its methyl groups, experiences greater steric hindrance (repulsion between atoms) than the trans isomer. This affects its boiling point, making it generally slightly lower than its trans counterpart. It is also less stable than the trans isomer due to increased steric strain.

Applications of Cis-Pent-2-ene



Cis-pent-2-ene, while not as widely used as some other alkenes like ethene, finds applications in several chemical processes. It serves as a starting material for the synthesis of other organic compounds. For instance, it can be used in the production of certain polymers or specialty chemicals, though these applications are often niche and tailored to specific industrial needs. Its precise applications depend on its reactivity, which is influenced by the presence of the cis double bond.

Key Takeaways and Actionable Insights



Understanding the structure and naming conventions of organic compounds like cis-pent-2-ene is crucial for anyone studying chemistry or related fields. The concept of isomerism and its impact on molecular properties is a cornerstone of organic chemistry. Remember that seemingly small differences in molecular structure, such as the cis/trans configuration, can significantly influence a molecule's properties and applications. The ability to visualize these spatial arrangements is essential for grasping the underlying principles of organic chemistry.

FAQs



1. What is the difference between cis and trans isomers? Cis isomers have substituents on the same side of a double bond, while trans isomers have them on opposite sides.

2. Is cis-pent-2-ene soluble in water? No, cis-pent-2-ene, like most hydrocarbons, is not significantly soluble in water due to its nonpolar nature.

3. What is the molecular formula of cis-pent-2-ene? Its molecular formula is C₅H₁₀.

4. How is cis-pent-2-ene produced? It can be produced through various chemical synthesis methods, often involving the controlled reduction or dehydration of suitable precursors. Specific methods are usually highly specialized and depend on the desired purity and scale of production.

5. Is cis-pent-2-ene reactive? Yes, the carbon-carbon double bond makes it relatively reactive, participating in addition reactions with various reagents like halogens (e.g., bromine) or hydrogen halides (e.g., hydrogen chloride). This reactivity is exploited in its applications.

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cis-2-Penten 98% | Sigma-Aldrich - MilliporeSigma cis-2-Penten 98%; CAS Number: 627-20-3; EC Number: 210-988-7; Synonyms: (2Z)-2-Penten,(Z)-2-Penten,(Z)-Pent-2-en,cis-penten,cis-β-amylen; Linear Formula: C2H5CH=CHCH3 at Sigma-Aldrich

Cis-pent-2-ene. Electron diffraction, vibrational analysis and ... 1 Aug 1984 · The molecular structure of cis-pent-2-ene has been investigated by using electron diffraction, vibrational analysis and molecular mechanics. It is possible to fit a model, describing cis -pent-2-ene as a semi-rigid molecule with one conformer only, to the electron diffraction data.

(Z)-Pent-2-en | 627-20-3 - ChemicalBook Visit ChemicalBook To find more (Z)-Pent-2-en(627-20-3) information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. You can also browse global suppliers,vendor,prices,Price,manufacturers of (Z)-Pent-2-en(627-20-3).

cis-pent-2-ene Request for Quotation - ChemBK cis-pent-2-ene Request for Quotation CIS-2-PENTENE CAS: 627-20-3 Molecular Formula: C5H10

What are the cis & trans structures of pent-2-ene - Brainly 25 Feb 2019 · The IUPAC name of cis-2-pentene is (2Z)-pent-2-ene. The IUPAC name of trans-2-pentene is (2E)-pent-2-ene. Please note that while the terms cis- and trans- are still widely used and widely accepted by chemists, the trend is to describe molecules with Z and E notation.

CIS-2-PENTENE | 627-20-3 - ChemicalBook 27 Jan 2025 · CIS-2-PENTENE (CAS 627-20-3) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight, uses, prices, suppliers, SDS and more, available at Chemicalbook.

Cis-Pent-2-en: Cấu Trúc, Tính Chất và Ứng Dụng Chi Tiết Cis-Pent-2-en là một trong hai đồng phân hình học quan trọng của pent-2-en. Tính chất hóa học của cis-pent-2-en được xác định bởi cấu trúc của nó, cụ thể là sự sắp xếp không gian của các nhóm chức và liên kết đôi trong phân tử.

2-Pentene, (Z)- - NIST Chemistry WebBook Scott, Donald W.; Waddington, Guy, Vapor Pressure of cis-2-Pentene, trans-2-Pentene and 3-Methyl-1-butene, J. Am. Chem. Soc., 1950, 72, 9, 4310-4311, https://doi.org/10.1021/ja01165a542. [ all data ]

Substance Information - ECHA Harmonised classification and labelling is a legally binding classification and labelling for a substance, agreed at European Community level. Harmonisation is based on the substance’s physical, toxicological and eco-toxicological hazard assessment.

cis-2-Pentene 98 627-20-3 - MilliporeSigma cis-2-Pentene 98%; CAS Number: 627-20-3; EC Number: 210-988-7; Synonyms: (2Z)-2-Pentene,(Z)-2-Pentene,(Z)-Pent-2-ene,cis-β-Amylene,cis-Pentene; Linear Formula: C2H5CH=CHCH3 at Sigma-Aldrich

Pent-2-en | 109-68-2 - ChemicalBook 2-Pentene (mixture of cis and trans) is used in the synthesis of polycyclopentene by ring-opening metathesis polymerization. 2-Pentene undergoes addition reaction with phenoxathiin cation radical in acetonitrile solution to form bis (10-phenoxathiiniumyl)alkane adducts.

CIS-2-PENTENE - Safety Data Sheet - ChemicalBook 1 Feb 2025 · Material Safety Data Sheet or SDS for CIS-2-PENTENE 627-20-3 from chemicalbook for download or viewing in the browser

2-Pentene, (Z)- - NIST Chemistry WebBook 2-Pentene; 2-Pentene, (E)-Other names: (Z)-2-Pentene; cis-β-Amylene; cis-Pentene; cis-2-Pentene; 2-(Z)-C5H10; cis-Pentene-2; Pentene-2, cis-; (Z)-pent-2-ene Permanent link for this species. Use this link for bookmarking this species for future reference. Information on this page: Reaction thermochemistry data; References; Notes; Other data ...

cis-2-Pentene 98 627-20-3 - MilliporeSigma cis-2-Pentene 98%; CAS Number: 627-20-3; EC Number: 210-988-7; Synonyms: (2Z)-2-Pentene,(Z)-2-Pentene,(Z)-Pent-2-ene,cis-β-Amylene,cis-Pentene; Linear Formula: C2H5CH=CHCH3 at Sigma-Aldrich

Cis-pent-2-ene. Electron diffraction, vibrational analysis and ... 1 Aug 1984 · The molecular structure of cis-pent-2-ene has been investigated by using electron diffraction, vibrational analysis and molecular mechanics. It is possible to fit a model, describing cis -pent-2-ene as a semi-rigid molecule with one conformer only, to the electron diffraction data.

cis-2-PENTENE | C5H10 | CID 5326160 - PubChem Used as a solvent in organic synthesis and as a polymerization inhibitor. cis-2-PENTENE has been reported in Tuber borchii with data available. 2-Pentene is a hydrocarbon and one of the isomers of pentene. Pentenes are components of gasoline and are often produced as by-products of catalytic of thermal cracking of petroleum. (L1287)

2-Pentene, (Z)- - NIST Chemistry WebBook Other names: (Z)-2-Pentene; cis-β-Amylene; cis-Pentene; cis-2-Pentene; 2-(Z)-C5H10; cis-Pentene-2; Pentene-2, cis-; (Z)-pent-2-ene Permanent link for this species. Use this link for bookmarking this species for future reference. Information on this page: Notes; Other data available: Gas phase thermochemistry data;

cis-2-Penten 98% | Sigma-Aldrich - MilliporeSigma cis-2-Penten 98%; CAS Number: 627-20-3; EC Number: 210-988-7; Synonyms: (2Z)-2-Penten,(Z)-2-Penten,(Z)-Pent-2-en,cis-penten,cis-β-amylen; Linear Formula: C2H5CH=CHCH3 at Sigma-Aldrich

cis-Pent-2-en ( (2Z)-Pent-2-en) - LMU Fakultät für Chemie und Pharmazie Molekül-Visualisierungen. Navigation. Home. 3D-Strukturen. Spezielle 3D-Darstellungen; Erläuterungen

cis-2-Pentene, Thermo Scientific Chemicals | Fisher Scientific cis-2-Pentene, Thermo Scientific Chemicals Product Code. 10116823. Click to view available options Quantity: 1 g 5 g 10 g Packaging: Glass bottle ...