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The numbers 200-900 would be confused easily with 22 to 29 if they were used in chemistry. khīlioi = 1000, diskhīlioi = 2000, triskhīlioi = 3000, etc. 13 to 19 are formed by starting with the Greek word for the number of ones, followed by και (the Greek word for 'and'), followed by δέκα (the Greek word for 'ten').
[1] [2] 5 C 6 H 5 MgBr + 4 CrCl 3 → (C 6 H 5) 5 CrBr + 2 MgBr 2 + 3 MgCl 2 + 3 CrCl 2. This event marked an advance in organochromium chemistry at the time and "(C 6 H 5) 5 CrBr" was described to have salt-like properties. However, the reported workup procedures for "(C 6 H 5) 5 CrBr" was challenging and the yield was low.
68 Ga III is usually obtained from a dedicated mobile radionuclide source, a Gallium-68 generator, in form of a solution in dilute (0.04–0.1 M) hydrochloric acid (frequently and imprecisely referred to as "68 Ga chloride solution in HCl" despite it contains no species with a Ga–Cl bond but [68 Ga(H 2 O) 6] 3+ complex hydrate cations). [18]
The ternary 2:1:5 compound of antimony, copper and potassium can be named in two ways depending on which element(s) are designated as electronegative. CuK 5 Sb 2 copper pentapotassium diantimonide, (both copper and potassium are designated as electropositive and are sequenced alphabetically)
A mnemonic is a memory aid used to improve long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds, sequences of elements, their reactivity, etc., can be easily and efficiently memorized with the help of mnemonics.
-bis, an IUPAC numerical multiplier for compound or complex features, meaning 2; A colloquial name for N,N'-Methylenebisacrylamide; Barratt Impulsiveness Scale, in psychology ...
1,1 ′-Bis(diphenylphosphino)ferrocene, commonly abbreviated dppf, is an organophosphorus compound commonly used as a ligand in homogeneous catalysis. It contains a ferrocene moiety in its backbone, and is related to other bridged diphosphines such as 1,2-bis(diphenylphosphino)ethane (dppe).
Bis(dicyclohexylphosphino)ethane, abbreviated dcpe, is an organophosphorus compound with the formula (C 6 H 11) 2 PCH 2 CH 2 P(C 6 H 11) 2. It is a white solid that is soluble in nonpolar organic solvents. [1] The compound is used as a bulky and highly basic diphosphine ligand in coordination chemistry. [2]