Questions tagged [reference-request]

This tag is for questions looking for a single specific, or a small number of (citable) references.

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1answer
2k views

Reduction of 2-cyclohexenone to cyclohexanol

Is $\ce{NaBH4}$ a suitable reducing agent for the conversion of 2-cyclohexenone to cyclohexanol? In Clayden (page 506, second edition), I have found the reduction of cyclopentenone to cyclopentanol ...
2
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1answer
51 views

Good sources to understand Stat Mech with concepts

I never had a proper course on Statistical Mechanics during my undergrad. I've tried picking up the subject by reading books, but I find that many focus on the mathematical derivations and I get ...
2
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1answer
150 views

Standard Heats and Free Energies of Formation and Absolute Entropies of 2-Chloro-2-methylpropane

Does 2-Chloro-2-methylpropane have standard heats and free energies of formation and absolute entropies values in a liquid state? http://www.wiredchemist.com/chemistry/data/thermodynamic-data This ...
2
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1answer
798 views

Good book for foundational chemistry [closed]

I need a good book that explains the basics of chemistry in a lucid and importantly, systematic manner. Most books on this subject are not comprehensive and assume that the reader is well acquainted ...
2
votes
1answer
156 views

Do the compounds NaₓIrO₂ and NaOsO₂ exist?

Based on some physics background, I want to know whether have scientists synthesized these two materials: $\ce{Na_{$x$}IrO2}$ and $\ce{NaOsO2}$ in the lab, if so, what properties do they have? I ...
2
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1answer
57 views

Reference request on formate potash process

Wikipedia article on Potassium Formate mentions a so-called "formate potash process" for production of potassium, presumably referring to elemental metal. Concise encyclopedia chemistry by Mary ...
2
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1answer
750 views

Enthalpy of formation and bond energies of CH2(OH)2?

I was wondering if I could have the bond energy and enthalpy of formation in kJ/mol for $\ce{CH2(OH)2}$? I honestly searched the Internet and my textbook and I couldn't find it. I'm sure I could ...
2
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1answer
102 views

Book recommendations for protein structure refinement

I’m an undergraduate Chemistry student and I’m currently writing my dissertation about semi-empirical methods, particularly PM7, applied to protein structure refinement from X-ray structure. Could you ...
2
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2answers
401 views

Atomic coordinates for DNA bases as they appear in a B-form or A-form duplex

Where can I find atomic coordinates for guanosine / cytosine / thymine / adenine (either the ribonucleotide or deoxyribonucleotide bases) where the atoms are configured in the manner we would expect ...
2
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0answers
36 views

Concentration of sulfur in turbid solution

I recently participated in an experiment where I need to calculated the reaction orders and the reaction constant of the reaction: $$\ce{8 Na2S2O3(aq) + 16 HCl(aq) -> S8(s) + 8 SO2(g) + 16 NaCl(aq) ...
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0answers
28 views

Is there a better coordinate framework and symmetry operator for constructing molecular orbitals of molecules with higher-order geometry?

The following excerpt is taken from [1] (with a few rewording, emphasizes are mine). In an attempt to construct molecular orbital (MO) of any molecule, one needs to determine the symmetries of ...
2
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0answers
78 views

Equilibrium Constants for Diatomic Gases at High Temperatures

I'm new here and I haven't taken chemistry beyond high school, so please forgive the ignorance. I am reading a book about hypersonic aerodynamics, and I am trying to connect some chemistry knowledge ...
2
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0answers
152 views

What is the correct formula for iodonium ion?

Previously, I have made a comment on user @Maurice's response to a question where he enquired about the existence of $\ce{I3+}$. I cited a paper1 which said that $\ce{I3+}$ is (apparently?) called ...
2
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0answers
110 views

What is the activation energy barrier of uncatalyzed nitrogen fixation?

I'm interested in the activation energy ($E_\mathrm a$) of uncatalyzed aqueous nitrogen fixation: $$\ce{3 H2 + N2 -> 2 NH3}$$ Biology performs this reaction with the nitrogenase enzyme at room ...
2
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0answers
166 views

Which material are piezoelectric buzzers made of?

Which material are these buzzers made of? Does it depend on the manufacturer or they all are made of the same material? The Wikipedia page does not say anything about the material. I found some ...
2
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0answers
89 views

Antisymmetrized Product of Strongly Orthogonal Geminal (APSG) method

To get a deeper understanding of electronic structure methods, like Hartree-Fock, MP2, and Coupled Cluster method, there are many small programs (codes) available in Python, C++ or Fortran, for ...
2
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0answers
189 views

What studies show that d orbitals don't play an important role in covalent bonding? (> period 2 elements) [closed]

Take a look at all the following molecules: $\ce{SO3^{2-}}$, $\ce{SO2}$, $\ce{SO4^2-}$, $\ce{PF5}$ and many more you can add. In all these there is a controversy of one of these two types: Is formal ...
2
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0answers
74 views

Single crystal LiF solid state NMR

I haven't been able to find any literature on $\ce{^{19}F}$ solid state NMR studies of $\ce{LiF}$ crystals, not even $\ce{LiF}$ powders. Is there any NMR chemists who is familiar with $\ce{LiF}?$ Any ...
2
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0answers
47 views

Can someone suggest me important references for deriving EOM in MCSCF?

I am currently starting a project dealing with MCSCF method. Can someone please give me references (papers or lecture notes are preferred) which may be considered as the "corner stones" in the history ...
2
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0answers
28 views

Help finding a thixotropic suspension with specific properties for 3d printing

I currently doing research on 3d printing on circuit boards. The technique we are using is to put a conductive material, I.e ceramics/metal in a gel/polymer, to print the suspension and then when is ...
2
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0answers
188 views

Reaction of PLA plastic with methane or carbon dioxide

PLA (polylactic acid) plastic is commonly used for 3D printing, and I would like to create a 3D printed part that can be used in an experiment with methane ($\ce{CH4}$) and carbon dioxide ($\ce{CO2}$) ...
2
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0answers
101 views

Reference for assignment of symmetry (term symbols) of electronic states

I am looking for a textbook and/or internet resource where I can find the reference for assignment of symmetry of electronic states systematically. For example, $$ \ce{^1\Delta^{}_{g}}, \ce{^3\Sigma^{...
2
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0answers
99 views

Brownian motion of colloids at high density

Colloidal particles in dilute suspensions tend to perform a universal type of Brownian motion at finite temperature, according to the Stokes Einstein relation $D\approx\frac{k_BT}{6\pi \eta r}$ in the ...
2
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0answers
65 views

Looking for solubility kinetics of zinc chloride hydroxide monohydrate

$\ce{Zn5(OH)8Cl2.H2O}$ is a crystalline solid insoluble in water. Often used as nutritional supplement. Preparation and chemistry of zinc chloride hydroxide monohydrate is known. I am looking for some ...
2
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0answers
48 views

Nontraditional career/grad school path [closed]

I'm a math major (got my BA in May 2014) currently working in finance. I really don't feel any motivation for my current job except that it pays the bills. I would like to know if anyone has made a ...
2
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0answers
33 views

Reference request for properties of amorphous titanium carbide (a-TiC)

I assume through some side reaction I'm getting $\ce{TiC}$ in my $\ce{TiO2}$ samples after calcination and I need some basic information about the properties of amorphous $\ce{TiC}$. Is it ...
2
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0answers
75 views

Rendering and visualization of orbitals of an atom? [duplicate]

I am looking for program that would display and render the orbitals of an atom. Preferably display all orbitals. Specifically Argon. Its not duplicate. I am looking for visual appealing rendered ...
2
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0answers
423 views

What is the explanation of the odd even effect in liquid crystals?

What is the most accepted theory for explaining the odd even effect in liquid crystals? Can anyone explain and refer the corresponding paper?
2
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0answers
100 views

Ink / formulation chemistry: What lab requirements

Little open information can be found on the requirements of the manufacture, development and testing of gel and printing inks. It seems that most ink manufacturers have their own specific lab ...
2
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0answers
88 views

Nomenclature in Other languages

Even one letter can make a huge difference in Chemistry Nomenclature. So I am looking for credible resources that is specifically published for explaining Nomenclature rules, examples in Spanish. Any ...
2
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0answers
365 views

Delta G values for Pyruvate--> Alanine vs. Oxaloacetate -> Aspartate ->Asparagine

What are the delta G values for the mammalian (human) biosynthesis of alanine from pyruvate, and for the conversion of oxaloacetate to asparagine? (assuming no particular cellular restriction or other ...
2
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0answers
247 views

Graph theory, isomer enumeration and chemical graph theory

Where could we find a good description of graph theory applied to the general problem of isomer enumeration and chemical graph theory?
2
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0answers
89 views

Reference to find dielectric constants and dielectric relaxation time

I am working on a Master degree and need to know the following data : The static (low frequency) dielectric constant of isopropanol at 25 °C The Optical (high frequency) dielectric constant of ...
1
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2answers
509 views

Density of saturated n-octane in air at 300 K?

I am trying to calculate (if possible) the gas density of air saturated with n-octane at 300 K. Any suggestion of how to do this, or better, where I can look up the data?
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3answers
847 views

Luminescent materials under IR radiation?

is there a database somewhere of materials that are luminescent when exposed to Infra Red radiation?
1
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2answers
93 views

Finding the chemical name of SnMg₂O₄

Can somebody help me in identifying the name of $\ce{SnMg2O4}$? Other examples are $\ce{ZnAl2O4}$ (zinc aluminate), $\ce{ZnIn2S4}$ (zinc thioindate). Please kindly provide the reference if possible.
1
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1answer
399 views

Products of HMTD decomposition

Hexamethylene triperoxide diamine, "Hex" for short, is an explosive organic compound. I want to know the products of this reaction: $$\ce{C_6H_{12}N_2O_6 -> ? + Energy}$$
1
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2answers
37 views

Thermal properties of aluminium alloy 6063 [closed]

I am looking for the operating temperature range both in a cold and hot environments (minimum and maximum operating temperatures) for aluminium alloy 6063. I'm new to finding this kind of information ...
1
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2answers
390 views

Equilibrium constants for lewis acids such as Ca2+

I need to calculate the theoretical $\mathrm{pH}$ in a $50~\mathrm{mL}$ water solution where $6.4\times10^{-4}~\mathrm{g}$ of $\ce{Ca^{2+}}$ is present. The reaction I base this on is the following $$...
1
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2answers
132 views

“Encyclopedic” / semi-exhaustive reference work on Chemistry [closed]

I'm buying my brother a present—It's the holiday season after all. He's about to start his academic career in chemistry. I would like to give him a book on chemistry, but not something that is ...
1
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1answer
87 views

Supposed low temperature of calcium carbide synthesis

I came across an interesting reaction on allreactions.com under silicon tab: $$\ce{SiO2 + 5 C(coke) + CaO ->[\pu{800–1000 °C}] Si + CaC2 + 3 CO}$$ Unfortunately the website doesn't provide sources ...
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1answer
90 views

Does Henry's law depend on curvature of gas/liquid interface?

Could you tell me Henry's law depends on curvature of gas/liquid interface or not? It would be better with references.
1
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1answer
270 views

House-hold chemistry experiments for a high-school student [closed]

I want to experiment the things which we learn in chemistry as a twelfth grader.I want to do them at my home but I'm not supplied with enough reactants.What can I do by using such reactants. I tried ...
1
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1answer
173 views

Reference request - Nomenclature of organophosphorus compounds?

Can someone please provide me a good reference for the nomenclature of organophosphorus compounds such as pesticides and chemical warfare agents? Something from the IUPAC would be great. Thanks.
1
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1answer
197 views

What fraction of hydrogen in air results in an explosive mixture?

I would like to know if there is documented evidence of the quantity of hydrogen to air that must be present in the mixture to risk explosion or flame.
1
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2answers
268 views

Cohesive Energy Density table request

Quick question: Any one knows a resource for Cohesive Energy Density of some organic materials ? I am not looking for any specific molecule, actually I want to plan my project based on available ...
1
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1answer
118 views

Fundamentals of mathematics and physics for physical chemistry [closed]

Before I start studying chemistry, I want to gain some knowledge about the fundamentals of mathematics and physics that are important to better understand the principles of physical chemistry, ...
1
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1answer
108 views

How often is the IUPAC Goldbook Updated?

I was wondering how often does the IUPAC update its Gold Book, ie, IUPAC Compendium of Chemical Terminology - the Gold Book. It poped in my mind when I saw this question about jellium aromaticity, ...
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2answers
134 views

Will gamma radiation cause “thermal” decomposition of sodium bicarbonate?

I am conducting research for a new drug that contains powdered sodium bicarbonate, and the drug will need to be sterilized after placement into it's container/closure system. Typically, this is ...
1
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1answer
370 views

Does aqueous component contribute to the equilibrium constant?

Consider an equilibrium reaction with an aqueous solution $\ce{A(aq)}$ in equilibrium phase with gas: $$\ce{A(aq) + B(g) <=>[$K_\mathrm{eq}$] C(g)}$$ Would the equilibrium constant have aqueous ...

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