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1,4-Bis(Diphenylphosphino)Butane

CAS: 7688-25-7 | C28H28P2

2D Structure

3D Structure

Loading 3D structure...

Basic Information

CAS Registry Number: 7688-25-7
Molecular Formula: C28H28P2
Molecular Mass: 426.48 g/mol

Names and Synonyms:

1,4-Bis(Diphenylphosphino)Butane
Phosphine, 1,1′-(1,4-butanediyl)bis[1,1-diphenyl-
Phosphine, tetramethylenebis[diphenyl-
Phosphine, 1,4-butanediylbis[diphenyl-
1,1′-(1,4-Butanediyl)bis[1,1-diphenylphosphine]
Tetramethylenebis(diphenylphosphine)
1,4-Bis(diphenylphosphino)butane
1,4-Butanediylbis[diphenylphosphine]
1,4-Butylenebis(diphenylphosphine)
DPPB (catalyst precursor)
DPPB
1,4-Bis(diphenylphosphanyl)butane
[4-(Diphenylphosphanyl)butyl]diphenylphosphane

Identifiers:

SMILES:
c1ccc(P(CCCCP(c2ccccc2)c2ccccc2)c2ccccc2)cc1
InChI:
InChI=1S/C28H28P2/c1-5-15-25(16-6-1)29(26-17-7-2-8-18-26)23-13-14-24-30(27-19-9-3-10-20-27)28-21-11-4-12-22-28/h1-12,15-22H,13-14,23-24H2

Key Properties

Melting Point
135-136 °C CAS Common Chemistry

Spectral Data

NMR, IR, and Mass spectral data

1H NMR
13C NMR
Predicting NMR spectra...
10 ppm 9 8 7 6 5 4 3 2 1 0 ppm
Shift (ppm) Multiplicity Integration Assignment
200 ppm 180 160 140 120 100 80 60 40 20 0 ppm
Shift (ppm) DEPT Assignment

Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.

External Resources

All Properties

Comprehensive physical and chemical properties

Property Value Source
Molecular Mass 426.48 g/mol CAS Common Chemistry
426.48000000000013 g/mol RDKit
426.166624156 g/mol RDKit
Wikipedia Url https://en.wikipedia.org/wiki/1,4-Bis(diphenylphosphino)butane CAS Common Chemistry
Canonical SMILES C=1C=CC(=CC1)P(C=2C=CC=CC2)CCCCP(C=3C=CC=CC3)C=4C=CC=CC4 CAS Common Chemistry
InChI InChI=1S/C28H28P2/c1-5-15-25(16-6-1)29(26-17-7-2-8-18-26)23-13-14-24-30(27-19-9-3-10-20-27)28-21-11-4-12-22-28/h1-12,15-22H,13-14,23-24H2 CAS Common Chemistry
InChI Key InChIKey=BCJVBDBJSMFBRW-UHFFFAOYSA-N CAS Common Chemistry
Melting Point 135-136 °C CAS Common Chemistry
Name 1,4-Bis(diphenylphosphino)butane CAS Common Chemistry
Heavy Atom Count 30 RDKit
Hydrogen Bond Acceptors 0 RDKit
Hydrogen Bond Donors 0 RDKit
Rotatable Bonds 9 RDKit
Aromatic Ring Count 4 RDKit
Topological Polar Surface Area 0.0 Ų RDKit
LogP 6.032400000000005 RDKit
Molar Refractivity 137.11199999999988 RDKit

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