A series of four n-type semiconducting copolymers containing a 2,1,3-benzothiadiazole (BT) based acceptor annulated with 2-(1,3-dithiol-2-ylidene)malonitrile group are synthesized and their optoelectronic properties investigated.

The Ni(III) atom in the anion of the title complex, (C(9)H(14)N)[Ni(C(4)N(2)S(2))(2)], is coordinated by four S atoms of two maleonitrile-dithiol-ate ligands, and exhibits a square-planar coordination geometry.

In the title compound, C(18)H(23)NOS(6), the dithiol-opyrrole ring is almost planar [r.m.s. deviation = 0.044 (3) Å] and makes a dihedral angle of 25.11 (7)° with the dithiole ring. In the crystal, pairs of neighboring mol-ecules are connected by weak inter-molecular C-H⋯O inter-actions. These dimers are further linked into a chain along [110] by C-H⋯O inter-actions.

We present a facile strategy to modify poly(dopamine) (PDA)-coated substrates. Using thiol-terminated short chain ethylene oxide oligomers (OEG) under aqueous conditions, we explore the creation of a model surface exhibiting resistance to nonspecific protein absorption (RPA) by engineering the surface properties of a PDA adlayer. Surprisingly, dithiol-terminated OEG molecules demonstrated signi...

The asymmetric unit of the title compound, (C(6)H(9)N(2))(2)[Ni(C(4)N(2)S(2))(2)], contains one half of an [Ni(mnt)(2)](2-) anion (mnt is maleonitrile-dithiol-ate or 1,2-dicyano-ethene-1,2-dithiol-ate) and one 1-amino-4-methyl-pyridinium cation. The Ni(II) atom is located on an inversion centre. In the crystal structure, inter-molecular N-H⋯N hydrogen bonds link the mol-ecules.

In the title compound, C(14)H(10)N(2)S(5) [systematic name; 3-({2-[4-(pyridin-4-yl)-2H-1,3-dithiol-2-yl-idene]-2H-1,3-dithiol-4-yl}sul-fan-yl)propane-nitrile], all of the non-H atoms except for the cyano-ethyl-sulfanyl group, are approximately coplanar [maxium deviation = 0.090 (3) Å]. The two five-membered 1,3-dithiole rings are twisted by 2.6 (2)°. Weak inter-molecular S⋯S inter-actions occur...

The benzene-o-dithiol/pyridylimine (S-S)/(N-N) ligand H2-7, representing the first example of a new type of bis(bidentate) heterodonor ligands with a mixed donor set, has been synthesized by Schiff base condensation of pyridine-2-carbaldehyde with an amine-substituted benzene-o-dithiol moiety. Bis(cyclopentadienyl)titanium dichloride reacts selectively at the S-S donor group of H2-7 to yield co...

The title compound, C(19)H(22)N(2)O(2)S(2), consists of a tetra-cyclic ring system containing an azocine skeleton with methoxy-ethyl and dithiol-ane groups as substituents. The benzene and five-membered N-heterocyclic rings are nearly coplanar, making a dihedral angle of 0.81 (12)°. The dithiol-ane ring adopts an envelope conformation. Inter-molecular N-H⋯O hydrogen-bonding and weak C-H⋯π inter...

Condensation of ferrocene-1,1′-dithiol with PCl3 and P(NMe2)3 gave P-functionalized [3]ferrocenophanes an SPS-ansa-bridge. The P-chloro-derivative exists as a mixture two dynamically exchanging conformers which equilibrate via moderately fast torsional ring-flip process rather than P-inversion.

Stereochemically stable dithia[7]helicene and dithia-quasi[8]circulene decorated with 1,3-dithiol-2-one motifs were synthesized by simple double oxidative dehydrocyclisation.