User user5181

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1

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35k

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Why does Nitrogen form N₂ (and not N₄) while but Phosphorus forms P₄ (and not P₂)?

bond

Aug 4 '18 at 21:23 Community♦ 1

1

12

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2

answers

3k

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Bromination of 1,3,5-cyclooctatriene followed by nucleophilic substitution by excess dimethylamine

Apr 18 '18 at 11:46 Community♦ 1

6

8

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1

answer

11k

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Hardness and softness are terms used to describe which aspect of acidic behaviour?

hsab

Jan 28 '17 at 17:38 prashant 1

7

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2

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2k

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Why does no Robinson Annulation occur after the Michael addition?

organic-chemistry reaction-mechanism carbonyl-compounds

Feb 26 '18 at 2:05 Gaurang Tandon 8,246

6

votes

2

answers

29k

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How to assign the signals in the H-NMR of Aspirin?

nmr-spectroscopy

Oct 28 '14 at 22:53 ron 78.7k

5

votes

2

answers

1k

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What splitting pattern is this?

spectroscopy nmr-spectroscopy

Jul 1 '18 at 4:01 Gaurang Tandon 8,246

5

votes

1

answer

805

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Show the vibrational frequency of fluorine molecule anion is much lower than that of fluorine molecule

bond quantum-chemistry molecular-orbital-theory orbitals

Mar 4 '18 at 2:38 Avyansh Katiyar 4,860

5

votes

1

answer

312

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Reaction of CpFe(CO)2Cl with phenyllithium

organometallic-compounds

Apr 1 '17 at 16:17 orthocresol♦ 57.5k

1

4

votes

1

answer

1k

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Dehydration of secondary alcohol via E1 mechanism

organic-chemistry reaction-mechanism alcohols

Jun 25 '18 at 5:51 Community♦ 1

3

votes

1

answer

2k

views

Assigning 1H NMR spectrum and predicting peak coupling patterns for 2H-1-benzopyran-2-one

nmr-spectroscopy

Nov 9 '16 at 12:57 Community♦ 1

3

votes

1

answer

504

views

Why it is not yet possible to produce ethanol selectively in the Fischer Tropsch reaction?

organic-chemistry synthesis catalysis

Mar 11 '16 at 22:24 mhchem 3,240

3

votes

1

answer

2k

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Synthesis of Pseudopelletierine, Mannich reaction base catalysed

organic-chemistry reaction-mechanism synthesis

Nov 7 '14 at 19:58 jerepierre 9,927

3

votes

1

answer

619

views

HNMR Assignment

spectroscopy nmr-spectroscopy

Oct 18 '14 at 21:33 Community♦ 1

2

votes

2

answers

770

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Assigning Carbon NMR

organic-chemistry nmr-spectroscopy

May 16 '15 at 5:18 Community♦ 1

2

votes

2

answers

1k

views

What is the oxidation state of all the atoms in this compound, W(CH3CN)3(CO)3?

oxidation-state

Feb 14 '15 at 8:18 Del Pate 2,047

2

votes

1

answer

2k

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Suggest possible structures for the compound PF3(Ph)(NMe2) using the NMR data

nmr-spectroscopy

Nov 2 '14 at 19:31 Community♦ 1

1

vote

1

answer

921

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Reactions involving trimethylaluminium Al2Me6 [closed]

stoichiometry

Apr 8 '17 at 16:38 M.A.R. 9,730

1

vote

1

answer

48

views

Which ligands would be exchanged in this reaction?

coordination-compounds

Nov 4 '14 at 0:17 ron 78.7k

1

vote

1

answer

3k

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How can the 18 electron rule be used to explain that Fe(η5-C5H5)2 doesn't react with hydrogen but Ni(η5-C5H5)2 does?

electrons electronic-configuration coordination-compounds hydrogen

Oct 27 '14 at 22:10 Philipp 16.6k

1

vote

2

answers

8k

views

Which has the higher chemical shift E/Z alkene?

nmr-spectroscopy

Oct 23 '14 at 3:13 long 11.5k

1

vote

1

answer

187

views

Mass Spectroscopy peak assignments in but-3-en-1-ol

mass-spectrometry

Oct 20 '14 at 19:09 Klaus-Dieter Warzecha 41.9k

0

votes

1

answer

7k

views

Describe the bonding in a tribromide anion, what is its structure?

inorganic-chemistry molecular-structure lewis-structure

Feb 6 '19 at 20:50 andselisk♦ 32.4k

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22 Questions

Why does Nitrogen form N₂ (and not N₄) while but Phosphorus forms P₄ (and not P₂)?

Bromination of 1,3,5-cyclooctatriene followed by nucleophilic substitution by excess dimethylamine

Hardness and softness are terms used to describe which aspect of acidic behaviour?

Why does no Robinson Annulation occur after the Michael addition?

How to assign the signals in the H-NMR of Aspirin?

What splitting pattern is this?

Show the vibrational frequency of fluorine molecule anion is much lower than that of fluorine molecule

Reaction of CpFe(CO)2Cl with phenyllithium

Dehydration of secondary alcohol via E1 mechanism

Assigning 1H NMR spectrum and predicting peak coupling patterns for 2H-1-benzopyran-2-one

Why it is not yet possible to produce ethanol selectively in the Fischer Tropsch reaction?

Synthesis of Pseudopelletierine, Mannich reaction base catalysed

HNMR Assignment

Assigning Carbon NMR

What is the oxidation state of all the atoms in this compound, W(CH3CN)3(CO)3?

Suggest possible structures for the compound PF3(Ph)(NMe2) using the NMR data

Reactions involving trimethylaluminium Al2Me6 [closed]

Which ligands would be exchanged in this reaction?

How can the 18 electron rule be used to explain that Fe(η5-C5H5)2 doesn't react with hydrogen but Ni(η5-C5H5)2 does?

Which has the higher chemical shift E/Z alkene?

Mass Spectroscopy peak assignments in but-3-en-1-ol

Describe the bonding in a tribromide anion, what is its structure?