The Crystal Structure of Methylene Bichloride, CH2Cl2

Abstract

The crystal structure of methylene dichloride has been determined by the X-ray diffraction method at about −120°C. The structure has a symmetry D2h14–Pbcn, and its orthorhombic tetramolecular cell has these dimensions: a=4.249±0.001, b=8.138±0.020, and c=9.492±0.002 Å. The positional parameters of the chlorine and carbon atoms are obtained by a three-dimensional Patterson function, followed by a least-squares refinement including the hydrogen atom. The structure thus obtained is in excellent agreement with the results of lattice-energy calculations. The crystal structure is quite different from that of methylene dibromide (and of methylene diiodide).

A Systematic Investigation of Coinage Metal Carbonyl Complexes Stabilized by Fluorinated Alkoxy Aluminates

“…The averaged C À Cl bond length of the coordinating chlorine atoms is 178.0 pm and the C À Cl bond length (averaged) of the non-coordinating chlorine atoms is 174.3 pm (bond length and angle in solid CH 2 Cl 2 : CÀCl = 177(1) ppm, Cl-C-Cl = 1128 (1)). [81] The Cl-C-Cl angle (112.28) of the CH 2 Cl 2 ligands is similar to those found in solid CH 2 Cl 2 . There are no fluorine contacts between the anion and the metal and no F···C(O) contacts, but two intramolecular Cl···C(O) contacts (339.9, 343.3 pm; sum of the van der Waals radii: SA C H T U N G T R E N N U N G (C,Cl) = 345 pm [80] ).…”

“…The CCl bond lengths of the coordinating CH 2 Cl 2 molecules are unsymmetrically distorted in comparison to free CH 2 Cl 2 . The averaged CCl bond length of the coordinating chlorine atoms is 178.0 pm and the CCl bond length (averaged) of the non‐coordinating chlorine atoms is 174.3 pm (bond length and angle in solid CH 2 Cl 2 : CCl=177(1) ppm, Cl‐C‐Cl=112°(1)) 81. The Cl‐C‐Cl angle (112.2°) of the CH 2 Cl 2 ligands is similar to those found in solid CH 2 Cl 2 .…”

Di-μ-chloro-dichlorobis(2,6-lutidine)diplatinum(II) dichloromethane solvate

“…The C atom in CH2C12 is located on a C2 axis. The C-C1(3) distance [1.678 (13)/~] is significantly shorter than the C-C1 bond length found in dichloromethane (1.768 + 0.013 A)at 153 K by Kawaguchi, Tanaka, Takeuchi & Watanabe (1973). It is not too far from the value (1.722 + 0.009 A) found by Oliver & Davis (1977) in a Pt complex where CH2CI 2 is a molecule of solvent.…”

Cu[Al(ORF)4] Starting Materials and their Application in the Preparation of [Cu(Sn)]+(n=12, 8) Complexes

“…[c] Estimated from the experimental structure determination, see ref. [44]. [d] Estimated from the experimental structure determination herein.…”