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This chemical reaction mechanism drawing depicts steps of carbonyl compound halogenation reaction.
"Alpha-substitution reactions occur at the position next to the carbonyl group, the α-position, and involve the substitution of an α hydrogen atom by an electrophile, E, through either an enol or enolate ion intermediate. ...
Alpha Halogenation of Aldehydes and Ketones.
A particularly common α-substitution reaction in the laboratory is the halogenation of aldehydes and ketones at their α positions by reaction Cl2, Br2 or I2 in acidic solution. Bromine in acetic acid solvent is often used. ...
The halogenation is a typical α-substitution reaction that proceeds by acid catalyzed formation of an enol intermediate." [Carbonyl Alpha-Substitution Reactions. Wikipedia]
This example was redesigned from the Wikimedia Commons file: Halogenierung Mechanismus Version 3-Seite001.svg. [commons.wikimedia.org/ wiki/ File:Halogenierung_ Mechanismus_ Version_ 3-Seite001.svg]
This image is available under the Creative Commons Attribution-ShareAlike 3.0 Unported License. [creativecommons.org/ licenses/ by-sa/ 3.0/ ]
The chemical drawing example "Carbonyl compound halogenation mechanism" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Chemistry solution from the Science and Education area of ConceptDraw Solution Park.
Alpha halogenation of aldehydes and ketones
Alpha halogenation of aldehydes and ketones, reaction arrows, reversible reaction, plus, minus, hydrogen, H, bond, covalent bond, double bond,

chemical drawings, chemistry equation symbols, chemical drawing software Chemistry

chemical drawings, chemistry equation symbols, chemical drawing software
This solution extends ConceptDraw DIAGRAM software with samples, template and libraries of vector stencils for drawing the Chemistry Illustrations for science and education.
HelpDesk

How to Diagram Sentences

Diagramming sentences is a playful, fun way of learning English Grammer. Sentences can be very complex and can contain many different parts of speech which implicate many different grammatical rules. Diagramming sentences will help you to make sure every part of your sentence are grammatically correct and provides you with a more comprehensive understanding of the English Language. A Sentence Diagram displays the parts of a sentence as a diagram in order to show the relationship of words and groups of words within the sentence. Sentence Diagram shows the relationship between the proposal of its parts. This is a good way to teach grammar! Sentence Diagram helps to make the writing more coherent as well as more interesting to read. ConceptDraw DIAGRAM allows you to create clear sentence diagrams using the special templates and vector stencils library.

Electrical Drawing Software and Electrical Symbols

ConceptDraw DIAGRAM is a powerful software for creating professional looking electrical circuits quick and easy. For this purpose you can use the Electrical Engineering solution from the "Engineering" area of ConceptDraw Solution Park.
Electrical Drawing Software provides the 26 stencils libraries of ready-to-use predesigned vector electrical symbols, templates and samples that make your electrical drawing quick, easy and effective.

Components of ER Diagram

ConceptDraw gives the ability to draw ER diagram (ERD) for visual describing database using the entity relationship symbols, work flow shapes, entity relationship stencils. Entity-Relationship model making possibility to describe a database using the components of ER Diagram in which in the tables data can be the point to data in other tables - for instance, your entry in the database could point to several entries.

Data Flow Diagram

Data flow diagram (DFD) is the part of the SSADM method (Structured Systems Analysis and Design Methodology), intended for analysis and information systems projection. Data flow diagrams are intended for graphical representation of data flows in the information system and for analysis of data processing during the structural projection. Data flow diagram often used in connection with human process and can be displayed as workflow diagram. The critical Process Flow Diagram is another flowchart technique for designing data flow in connection with organizational processes. The critical Process flow diagram may use different range of symbols than a classic workflow diagram.

Electrical Symbols, Electrical Diagram Symbols

How to create Electrical Diagram? It’s very easy! All you need is a powerful software. It wasn’t so easy to create Electrical Symbols and Electrical Diagram as it is now with electrical diagram symbols offered by the libraries of Electrical Engineering Solution from the Industrial Engineering Area at the ConceptDraw Solution Park.
This solution provides 26 libraries which contain 926 electrical symbols from electrical engineering: Analog and Digital Logic, Composite Assemblies, Delay Elements, Electrical Circuits, Electron Tubes, IGFET, Inductors, Integrated Circuit, Lamps, Acoustics, Readouts, Logic Gate Diagram, MOSFET, Maintenance, Power Sources, Qualifying, Resistors, Rotating Equipment, Semiconductor Diodes, Semiconductors, Stations, Switches and Relays, Terminals and Connectors, Thermo, Transformers and Windings, Transistors, Transmission Paths,VHF UHF SHF.
The vector stencils library "Chemical drawings" contains 81 symbols of organic compounds and functional groups for chemical drawing.
Use it to draw structural formulas of organic molecules, schemes of chemical reactions and organic chemistry diagrams.
"Structural drawings.
Organic molecules are described more commonly by drawings or structural formulas, combinations of drawings and chemical symbols. The line-angle formula is simple and unambiguous. In this system, the endpoints and intersections of each line represent one carbon, and hydrogen atoms can either be notated explicitly or assumed to be present as implied by tetravalent carbon. The depiction of organic compounds with drawings is greatly simplified by the fact that carbon in almost all organic compounds has four bonds, nitrogen three, oxygen two, and hydrogen one. ...
Organic reactions.
Organic reactions are chemical reactions involving organic compounds. While pure hydrocarbons undergo certain limited classes of reactions, many more reactions which organic compounds undergo are largely determined by functional groups. The general theory of these reactions involves careful analysis of such properties as the electron affinity of key atoms, bond strengths and steric hindrance. These issues can determine the relative stability of short-lived reactive intermediates, which usually directly determine the path of the reaction.
The basic reaction types are: addition reactions, elimination reactions, substitution reactions, pericyclic reactions, rearrangement reactions and redox reactions. ...
Each reaction has a stepwise reaction mechanism that explains how it happens in sequence - although the detailed description of steps is not always clear from a list of reactants alone.
The stepwise course of any given reaction mechanism can be represented using arrow pushing techniques in which curved arrows are used to track the movement of electrons as starting materials transition through intermediates to final products." [Organic chemistry. Wikipedia]
The chemical symbols example "Design elements - Chemical drawings" was created using the ConceptDraw PRO software extended with the Chemistry solution from the Science and Education area of ConceptDraw Solution Park.
Chemical symbols
Chemical symbols, δ-, delta minus, electronegativity, δ+, delta plus, delta positive, Δ, delta, wedged bond, bond, wavy bond, reaction arrows, reversible reaction, plus, pentose ring, pentose, minus, methyl group, methyl, CH3, hydrogen, H, hollow wedged bond, bond, hashed wedged bond, bond, hashed bond, bond, dative bond, bond, dashed bond, cyclopropane, cyclopentane, cyclopentadienyl, cyclopentadiene, cyclooctane, cyclohexane, cycloheptane, cyclobutane, carbon, bond, covalent bond, triple bond, bond, covalent bond, single bond, bond, covalent bond, double bond, bond, bold bond, benzene, Kekule structure, benzene ring, benzene, OH, NO2, NH2, COOH, COH, CO, CH2, CH,

Chemistry Equation Symbols

If you are related with chemistry in you work or education activity, you need often draw various illustrations with chemistry equations. ConceptDraw DIAGRAM diagramming and vector drawing software offers you the Chemistry solution from the Science and Education area.
Chemistry solution provides the Chemical Drawings Library with large quantity of vector chemistry equation symbols to help you create professional looking chemistry diagrams quick and easy.

Flowchart Components

The ConceptDraw Flowchart component includes a set of samples and templates. This geathered as flowchart maker toolbox which focused on drawing flowcharts of any industry standards.