Update reactions_test.mdx

docs/repo/details_standards/reactions_test.mdx

@@ -49,65 +49,19 @@ Valid options are:
 (b) Methyl quinoline-4-carboxylate (16.4 g, 87.5 mmol) was isolated as a colorless solid in 76% yield.
 (c) Methyl quinoline-4-carboxylate was isolated as a colorless solid in 76% yield (16.4 g, 87.5 mmol).
 
-## Abbreviations and names
-Many solvents and others are commonly given with abbreviations. Please see the following list of abbreviations that should be used. Please do not use others.
-- THF: tetrahydrofuran
-- DMF: dimethylformamide
-- EtOAc: ethyl acetate
-- cHex: cyclohexane
-- nHex: n-hexane
-- DCM: methylene chloride
-- MeOH: methanol
-- DMSO: dimehtylsulfoxide
 
-Other common abbreviations:
-anal. analysis, at. wt atomic weight, bp boiling point, ca. about, cf. compare, e.g. for example, ed., eds. edition, editions, Ed., Eds. Editor, Editors, eq(s) equation(s), equiv wt equivalent weight, et al. and other, etc. and so forth, fp freezing point, i.e. that is, IR infrared, m molal, M molar, mp melting point, NMR nuclear magnetic resonanc, UV ultraviolet, v/v volume per volume, vol volume, vs versus, w/v weight per volume, w/w weight per weight.
-
-## Numbers and units
-Please adjust the space between numbers and units according to common standards:  
-All combinations of number and unit should be given with space, only the combination number+% (e.g. yield or concentration) are given without.
-- 12 h (wrong: 12h), 12 min (wrong: 12min), 12 °C (not 12°C), 12 mM (wrong: 12mM)
-- But: the product was obtained in 12% yield or 5% methanol in water
-➤ data should be quoted with decimal points and negative exponents (e.g., 25.8 J K−1 mol−1). Use the period as the decimal point, never a comma.
-➤ Use numerals before and after a decimal point. 0.25 (not .25) 78.0 or 78 (not 78.)
-➤ For ranges in scientific notation, retain all parts of all numbers or avoid ambiguity by use of parentheses or other enclosing marks. 9.2 × 10–3 to 12.6 × 10–3 or (9.2–12.6) × 10–3 (not 9.2 to 12.6 × 10–3)
-➤ Leave a space before and after mathematical operators that function as verbs or conjunctions; that is, they have numbers on both sides or a symbol for a variable on one side and a number on the other. 20 ± 2% 3.24 ± 0.01 4 × 5 cm 8 × 10–4 k ≥ 420 s–1 p < 0.01 Tg = 176 °C. 
-Exception 1 Leave no space around mathematical operators in subscripts and superscripts. ∆Hn–1 Eλ>353 M(x+y)+ 
-Exception 2 Leave no space around a slash (a/b), a ratio colon (1:10), or a centered dot (PM·V).
-➤ Use an en dash to mean “to” or “through” with a span of three or more numerals or other types of ranges. 12–20 months, Figures 1–4, 5–50 kg, sections 1b–1f, parts C–E, compounds A–I. 
-Exception 1: When either one or both numbers are negative or include a symbol that modifies the number, use the word “to” or “through”, not the en dash. –20 to +120 K, –145 to –30 °C, ≈50 to 60, 10 to >600 mL, <5 to 15 mg. 
-Exception 2: Do not use an en dash when the word “from” or “between” is used. from 500 to 600 mL (not from 500–600 mL), between 7 and 10 days (not between 7–10 days).
-➤ Use numerals with units of time or measure, and use a space between the numeral and the unit, except %, $, ° (angular degrees), ′ (angular minutes), and ″ (angular seconds). 
-6 min; 25 mL; 125 V/s; 0.30 g; 50%; $250; 273 K; 47°8′23″; 180° (but 180 °C); 90 °F; 50 µg of compound/dL of water
-For very large numbers with units of measure, use scientific notation or choose an appropriate multiplying prefix for the unit to avoid numbers of more than four digits. 1.2 × 106 s; 3.0 × 104 kg; 5.8 × 10–5 M; or 58 µM; 42.3 L (not 42,300 mL or 42 300 mL)
-exception 1 In tables, use the same unit and multiplying prefix for all entries in a column, even if some entries therefore require four or more digits. 
-exception 2 Use the preferred unit of a discipline, even when the numbers require four or more digits: g/L for mass density of fluids kg/m3 for mass density of solids GPa for modulus of elasticity kPa for fluid pressure MPa for stress
-➤ In four-digit numbers, use no commas or spaces.
-➤ Use a decimal and a zero following a numeral only when such usage truly represents the precision of the measurement: 27.0 °C and 27 °C are not interchangeable.
-➤ Use decimals rather than fractions with units of time or measure, except when doing so would imply an unwarranted accuracy. 3.5 h (not 3½ h) 5.25 g (not 5¼ g)
-➤ Use an en dash in ranges or series of three or more numbered items, whether on the line or in a superscript. 43–49 325–372 2005–2008 Tables 1–4[4]
-
-Chemistry-specific general formating 
-➤ Use italic type for chemical element symbols that denote attachment to an atom or a site of ligation. B,B′-di-3-pinanyldiborane bis[(ethylthio)acetato-O,S]platinum glycinato-N N-acetyl group N-ethylaniline[4]
-➤ When element symbols are used with a type of reaction as a noun or adjective, use roman type for the symbol and hyphenate it to the word that follows it. N-acetylated N-acetylation N-oxidation N-oxidized O-substituted O-substitution
-➤ Use italic type for the capital H that denotes indicated or added hydrogen. 1H-1,3-diazepine 3H-fluorene 2H-indene[4]
-➤ Use Greek letters, not the spelled-out forms, in chemical names to denote position or stereochemistry. Use a hyphen to separate them from the chemical name. α-amino acid (not alpha amino acid) β-naphthol (not beta naphthol)
-➤ Use italic type for positional, stereochemical, configurational, and descriptive structural prefixes when they appear with the chemical name or formula. Use a hyphen to separate them from the chemical name. Accepted prefixes include the following: abeo ac altro amphi anti antiprismo ar arachno as asym c catena cis cisoid closo cyclo d dodecahedro E endo erythro exo facgem hexahedro hexaprismo hypho icosahedro klado l m M mer meso n nido o octahedro p P pentaprismo quadro r R R∗ rel retro ribo s S S∗ sec sn sym syn t tert tetrahedro threo trans transoid triangulo triprismo uns vic xylo Z[4]
-➤ Do not capitalize prefixes that are shown here as lowercase, even at the beginning of a sentence or in a title and never use lower case for those that are written in capital letters. Enclose the prefixes E, R, R∗, S, S∗, and Z in parentheses. anti-bicyclo[3.2.1]octan-8-amine; ar-chlorotoluene; cis-diamminedichloroplatinum; cyclo-hexasulfur, c-S6; (E,E)-2,4-hexadienoic acid; m-ethylpropylbenzene; o-dibromobenzene, p-aminoacetanilide; (S)-2,3-dihydroxypropanoic acid; 5-sec-butylnonane.[4]
-Multiplying affixes are integral parts of the chemical name; they are set in roman type and are always closed up to the rest of the name (without hyphens). Use hyphens only to set off intervening locants or descriptors. Use enclosing marks (parentheses, brackets, or braces) to ensure clarity or to observe other recommended nomenclature conventions. Multiplying prefixes include the following: • hemi, mono, di, tri, tetra, penta, hexa, hepta, octa, ennea, nona, deca, deka, undeca, dodeca, etc. • semi, uni, sesqui, bi, ter, quadri, quater, quinque, sexi, septi, octi, novi, deci, etc. • bis, tris, tetrakis, pentakis, hexakis, heptakis, octakis, nonakis, decakis, etc. 3,4′-bi-2-naphthol; 2,2′-bipyridine; bis(benzene)chromium(0); 1,4-bis(3-bromo-1- oxopropyl)piperazine; 1,3-bis(diethylamino)propane; di-tert-butyl malonate dichloride.[4]
-
-3.10.3 Completeness
-➤ You should provide descriptions of the experiments in enough detail so that a skilled researcher is able to repeat them. Standard techniques and methods used throughout the work should just be stated at the beginning of the experimental section; descriptions of these are not needed. Any unusual hazards about the chemicals, procedures or equipment should be clearly identified. [5]
-➤ Only non-standard apparatus should be described; commercially available instruments are referred to by their stock numbers (for example, Perkin-Elmer 457 or Varian HA-100 spectrometers). The accuracy of primary measurements should be stated. Figures should include error bars where appropriate, and results should be accompanied by analysis of experimental uncertainty. [5]
-➤ Identify the materials used and give information on the degree of and criteria for purity, but do not reference standard laboratory reagents. Give the chemical names of all compounds and the chemical formulas of compounds that are new or uncommon. Use meaningful nomenclature; that is, use standard systematic nomenclature where specificity and complexity require, or use trivial nomenclature where it will adequately and unambiguously define a well-established compound. [4]
-➤ Describe apparatus only if it is not standard or not commercially available. Giving a company name and model number in parentheses is nondistracting and adequate to identify standard equipment. [4]
-➤ when measurement conditions remain unchanged, they need only be mentioned once, for instance in column headings[2]
-➤ New synthetic procedures should contain reactant quantities in weight or volume and molar units. Equipment details, such as reaction vessel, type of heating (conventional, microwave, or photoirradiation), irradiation wavelength, optical irradiance, cut-off filters, and details of purification techniques and solvents, among others, should be included. [3]
-➤ Describe the procedures used, unless they are established and standard. 
-➤ Note and emphasize any hazards, such as explosive or pyrophoric tendencies and toxicity, in a separate paragraph introduced by the heading “Caution:”. Include precautionary handling procedures, special waste disposal procedures, and any other safety considerations in adequate detail so that workers repeating the experiments can take appropriate safety measures. Some ACS journals also indicate hazards as footnotes on their content´s pages.[4]
-➤ New procedures should be fully described in detail to ensure reproducibility. [5]
-➤ Reactant quantities and product yields should be reported in weight and molar units; percentage yields should only be reported for materials of demonstrated purity   [5]
-➤ The Editors encourage authors to emphasize any unexpected, new, and/or significant hazards or risks associated with the reported work, including the use of toxic and/or environmentally persistent reagents and solvents, and provide a rationale on choice of these reagents and solvents. Organic Letters further encourages authors to consider the Principles of Green Chemistry in carrying out their research and consider reporting metrics such as atom economy, mass efficiency, E-factor, or others. For more information, please consult Research Tools provided by the ACS Green Chemistry Institute. [5]
-➤ For synthetic procedures, include: reactant quantities, detailed purification techniques, product quantities, isolated yields, physical state/description of the compounds (i.e., color, solid, etc.) and characterization data [5]
+## Completeness
+- You should provide descriptions of the experiments in enough detail so that a skilled researcher is able to repeat them. Standard techniques and methods used throughout the work should just be stated at the beginning of the experimental section; descriptions of these are not needed. Any unusual hazards about the chemicals, procedures or equipment should be clearly identified.
+- Only non-standard apparatus should be described; commercially available instruments are referred to by their stock numbers (for example, Perkin-Elmer 457 or Varian HA-100 spectrometers). The accuracy of primary measurements should be stated. Figures should include error bars where appropriate, and results should be accompanied by analysis of experimental uncertainty.
+- Identify the materials used and give information on the degree of and criteria for purity, but do not reference standard laboratory reagents. Give the chemical names of all compounds and the chemical formulas of compounds that are new or uncommon. Use meaningful nomenclature; that is, use standard systematic nomenclature where specificity and complexity require, or use trivial nomenclature where it will adequately and unambiguously define a well-established compound.
+- Describe apparatus only if it is not standard or not commercially available. Giving a company name and model number in parentheses is nondistracting and adequate to identify standard equipment.
+- when measurement conditions remain unchanged, they need only be mentioned once, for instance in column headings.
+- New synthetic procedures should contain reactant quantities in weight or volume and molar units. Equipment details, such as reaction vessel, type of heating (conventional, microwave, or photoirradiation), irradiation wavelength, optical irradiance, cut-off filters, and details of purification techniques and solvents, among others, should be included.
+- Describe the procedures used, unless they are established and standard. 
+- Note and emphasize any hazards, such as explosive or pyrophoric tendencies and toxicity, in a separate paragraph introduced by the heading “Caution:”. Include precautionary handling procedures, special waste disposal procedures, and any other safety considerations in adequate detail so that workers repeating the experiments can take appropriate safety measures. Some ACS journals also indicate hazards as footnotes on their content´s pages.
+- New procedures should be fully described in detail to ensure reproducibility.
+- Reactant quantities and product yields should be reported in weight and molar units; percentage yields should only be reported for materials of demonstrated purity.
+- The Editors encourage authors to emphasize any unexpected, new, and/or significant hazards or risks associated with the reported work, including the use of toxic and/or environmentally persistent reagents and solvents, and provide a rationale on choice of these reagents and solvents. Organic Letters further encourages authors to consider the Principles of Green Chemistry in carrying out their research and consider reporting metrics such as atom economy, mass efficiency, E-factor, or others. For more information, please consult Research Tools provided by the ACS Green Chemistry Institute.
+- For synthetic procedures, include: reactant quantities, detailed purification techniques, product quantities, isolated yields, physical state/description of the compounds (i.e., color, solid, etc.) and characterization data