Synthesis, Characterization, X-Ray Crystal Structure, and Antimicrobial Activity of 1,1′-(3,4-Diphenylthieno[2,3-b]thiophene-2,5-diyl)diethanone

Table 3

Antimicrobial activity of compound 4.

Comp. number	Gram-positive bacteria		Gram-negative bacteria		Fungi
	Staphylococcus pneumoniae	Bacillus subtilis	Pseudomonas  aeruginosa	Escherichia  coli	Aspergillus  fumigatus	Candida   albicans
4	12.9 ± 0.63	13.2 ± 0.58	NA	10.8 ± 0.44	18.7 ± 0.36	16.9 ± 0.27
Ampicillin	23.8 ± 0.2	32.4 ± 0.3	—	—	—	—
Gentamicin	—	—	17.3 ± 0.1	19.9 ± 0.3	—	—
Amphotericin B	—	—	—	—	23.7 ± 0.1	25.4 ± 0.1

Inhibition zones (mm).
NA: no activity.