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  2. Transition metal chloride complex - Wikipedia

    en.wikipedia.org/wiki/Transition_metal_chloride...

    Chloride is commonly found as both a terminal ligand and a bridging ligand. ... Mn-Cl bond length = 2.3731-2.3830 ... Mo 2 Cl 10: green (d 1) 2:

  3. Simplified Molecular Input Line Entry System - Wikipedia

    en.wikipedia.org/wiki/Simplified_Molecular_Input...

    For example, cyclopropene is usually written C1=CC1, but if the double bond is chosen as the ring-closing bond, it may be written as C=1CC1, C1CC=1, or C=1CC=1. (The first form is preferred.) C=1CC-1 is illegal, as it explicitly specifies conflicting types for the ring-closing bond. Ring-closing bonds may not be used to denote multiple bonds.

  4. Valence (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Valence_(chemistry)

    Thus, each sulfur atom is hexavalent or has valence 6, but has oxidation state +5. In the dioxygen molecule O 2, each oxygen atom has 2 valence bonds and so is divalent (valence 2), but has oxidation state 0. In acetylene H−C≡C−H, each carbon atom has 4 valence bonds (1 single bond with hydrogen atom and a triple bond with the other ...

  5. Chloride - Wikipedia

    en.wikipedia.org/wiki/Chloride

    The chloride is also a neutral chlorine atom covalently bonded by a single bond to the rest of the molecule. For example, methyl chloride CH 3 Cl is an organic compound with a covalent C−Cl bond in which the chlorine is not an anion. Other examples of covalent chlorides are carbon tetrachloride CCl 4, sulfuryl chloride SO 2 Cl 2 and ...

  6. Valence electron - Wikipedia

    en.wikipedia.org/wiki/Valence_electron

    For example, the electronic configuration of phosphorus (P) is 1s 2 2s 2 2p 6 3s 2 3p 3 so that there are 5 valence electrons (3s 2 3p 3), corresponding to a maximum valence for P of 5 as in the molecule PF 5; this configuration is normally abbreviated to [Ne] 3s 2 3p 3, where [Ne] signifies the core electrons whose configuration is identical ...

  7. Oxidation state - Wikipedia

    en.wikipedia.org/wiki/Oxidation_state

    That total includes the bond of order ⁠ 1 / 2 ... obtained from the bond lengths by the bond valence method, sum up to 2.01 at Fe and 3.99 at ... Cl1 +1 +2 +3 ...

  8. Protein contact map - Wikipedia

    en.wikipedia.org/wiki/Protein_contact_map

    Bifurcated hydrogen bonds and multiple hydrogen bonds between amino acid residues; and intra- and interchain hydrogen bonds are also indicated on the plots. Three classes of hydrogen bondings are distinguished by color-coding; short (distance smaller than 2.5 Å between donor and acceptor), intermediate (between 2.5 Å and 3.2 Å) and long ...

  9. Protein structure - Wikipedia

    en.wikipedia.org/wiki/Protein_structure

    Protein structures range in size from tens to several thousand amino acids. [2] By physical size, proteins are classified as nanoparticles, between 1–100 nm. Very large protein complexes can be formed from protein subunits. For example, many thousands of actin molecules assemble into a microfilament.