Di­bromo(1,1'-di­methyl-3,3'-methyl­ene­diimidazoline-2,2'-diylidene)­palladium(II)

The title N-heterocyclic carbene (NHC)-palladium complex, [PdBr₂(C₉H₁₂N₄)], an important precursor for catalytic reactions, exhibits a slightly distorted square-planar geometry at the Pd center, with two Br atoms in cis position, and is isostructural with the Pt analog [Muehlhofer, Strassner, Herdtweck & Hermann (2002). J. Organomet. Chem. 660, 121-126].

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean [sigma](C-C) = 0.008 Å
• R factor = 0.034
• wR factor = 0.095
• Data-to-parameter ratio = 16.5

checkCIF/PLATON results

No syntax errors found



Alert level C
PLAT232_ALERT_2_C Hirshfeld Test Diff (M-X)  Pd     -   Br1      =       8.87 su
PLAT232_ALERT_2_C Hirshfeld Test Diff (M-X)  Pd     -   Br2      =       6.66 su

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   2 ALERT level C = Check and explain
   0 ALERT level G = General alerts; check

   0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   2 ALERT type 2 Indicator that the structure model may be wrong or deficient
   0 ALERT type 3 Indicator that the structure quality may be low
   0 ALERT type 4 Improvement, methodology, query or suggestion

---