摘要:
Substituted tetrathiotetracenes and tetraselenotetracenes of the formula I ##STR1## in which Z is --S-- or --Se-- and (a) R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are H and R.sup.5 to R.sup.8 are each H and at least one of the radicals R.sup.5 to R.sup.8 independently of one another is a substituent belonging to the group comprising C.sub.1 -C.sub.20 alkyl--X--.sub.p which is unsubstituted or substituted by halogen, --CN, --CONR.sup.9 R.sup.10, --OR.sup.9, --SR.sup.9 or --COOR.sup.9, with the exception of C.sub.1 -C.sub.4 alkyl and methoxy, C.sub.2 -C.sub.18 alkenyl--X--.sub.p, C.sub.2 -C.sub.18 -alkynyl--X--.sub.p, C.sub.3 -C.sub.8 cycloalkyl--X--.sub.p, (C.sub.1 -C.sub.12 alkyl)--C.sub.3 -C.sub.8 cycloalkyl--X--.sub.p, C.sub.3 -C.sub.8 cycloalkyl-C.sub.r H.sub.2r --X--.sub.p, (C.sub.1 -C.sub.12 alkyl)-C.sub.3 -C.sub.8 -cyclo alkyl-C.sub.r H.sub.2r --X--.sub.p, phenyl--X--.sub.p, (C.sub.1 -C.sub.12)alkyl)-phenyl--X--, phenyl-C.sub.r H.sub. 2r --X--.sub.p and (C.sub.1 -C.sub.12 alkyl)-phenyl-C.sub.r H.sub.2r --X--.sub.p, r is 1 or 2 and p is 0 or 1 and X is --O--, --S--, --SO-- or --SO.sub.2 --, or R.sup.5 to R.sup.8 independently are a substituent belonging to the group comprising --Br, --CF.sub.3, --CN, --Si(C.sub.1 -C.sub.4 alkyl).sub.3, --S--(C.sub.m H.sub.2m O)--.sub.n R.sup.11 or --O--C.sub.m H.sub.2m --O--R.sup.11, or each one of R.sup.5 to R.sup.8 is --F or --Cl and at least one further member of R.sup.5 to R.sup.8 is a substituent of the groups defined above, including C.sub.1 -C.sub.4 alkyl and methoxy, R.sup.9 and R.sup.10 independently of one another are H, C.sub.1 -C.sub.12 alkyl, phenyl or --C.sub.m H.sub.2m --O--.sub.q R.sup.11, or R.sup.9 and R.sup.10 together are tetramethylene, pentamethylene, 3-oxapentylene or --CH.sub.2 CH.sub.2 NR.sup.9 CH.sub.2 CH.sub.2 --, R.sup.11 is H or C.sub.1 -C.sub.12 -alkyl, m is a number from 2 to 4, n is a number from 2 to 20 and q is a number from 1 to 20, orb) R.sup.1 to R.sup.8 independently of one another are H or one of the substituents defined above, including C.sub.1 -C.sub.4 alkyl and methoxy, or --COOR.sup.9 or --CONR.sup.9 R.sup.10 or two pairs of adjacent radicals of R.sup.1 to R.sup.8 are --CO--O--CO-- or --CO--NR.sup.9 --CO--, and at least one of R.sup.1 to R.sup.4 and also R.sup.5 to R.sup.8 is a substituent, with the exception of R.sup.2, R.sup.3, R.sup.6 and R.sup.7 when these are --F and methyl, and where R.sup.9 and R.sup.10 are as defined above.With electron acceptors they form charge-transfer complexes which can be used as organic electrical conductors, displays, optical switches and sensors.
摘要:
Chalcogen-substituted perylenes of the formula I ##STR1## wherein X is S or Se can be obtained in a simple manner, under mild reaction conditions and in pure form by heating a compound of the formula II ##STR2## in nitrobenzene, or in a mixture of nitrobenzene and an organic solvent miscible therewith and inert under the reaction conditions, in the presence of a Lewis acid or a protonic acid at 20.degree. to 120.degree. C. The perylenes of the formula I are used for example as donors for the production of organic conductors or semiconductors (charge-transfer-salts).
摘要:
Organic ion-radical salts having the electrical properties of metals and elements having a layer containing these salts are disclosed. The salts are salts of a chalcogenated tetracene donor compound and an electron acceptor compound wherein the ratio of donor compound to acceptor compound is from about 3:1 to about 1.5:1. These salts have a resistivity less than about 10.sup.-2 ohm-cm at 295.degree. K. The salts are further characterized by a resistivity that decreases with decreasing temperature. A vapor phase process for preparing these organic metals is also disclosed. The process comprises the steps of:1. forming a first vapor comprising the chalcogenated tetracene compound;2. forming a second vapor comprising the electron acceptor compound; and3. reacting the first vapor with the second vapor at a temperature of about 75.degree. C to about 300.degree. C in a substantially inert atmosphere.
摘要:
An organic thin film transistor containing a compound represented by the formula (1) in a semiconductor active layer has a high carrier mobility, a small change in the threshold voltage after repeated driving and a high solubility in an organic solvent. A1 and A2 represent S, O or Se; at least one of R1 to R6 represents a substituent represented by *-L-R wherein L represents a divalent linking group and R represents a hydrogen atom, an alkyl group, an oligooxyethylene group, an oligosiloxane group or a trialkylsilyl group.
摘要:
An organic thin film transistor containing a compound represented by the formula (1) in a semiconductor active layer has a high carrier mobility, a small change in the threshold voltage after repeated driving and a high solubility in an organic solvent. A1 and A2 represent S, O or Se; at least one of R1 to R6 represents a substituent represented by *-L-R wherein L represents a divalent linking group and R represents a hydrogen atom, an alkyl group, an oligooxyethylene group, an oligosiloxane group or a trialkylsilyl group.
摘要翻译:在半导体活性层中含有式(1)表示的化合物的有机薄膜晶体管具有高的载流子迁移率,反复驱动后的阈值电压的小变化和在有机溶剂中的高溶解度。 A1和A2代表S,O或Se; R 1〜R 6中的至少一个表示由* -L-R表示的取代基,其中L表示二价连接基团,R表示氢原子,烷基,低聚氧乙烯基,低聚硅氧烷基或三烷基甲硅烷基。
摘要:
As a result of the action of electron acceptors, for example chlorine, bromine and/or iodine, on compositions containing a linear, branched or structurally crosslinked polymer and an unsubstituted or substituted tetrathionaphthalene, tetraselenonaphthalene, tetratelluronaphthalene, tetrathiotetracene, tetraselenotetracene or tetratellurotetracene, electrical conductivity is imparted to the compositions through the formation of charge-transfer complexes. These compositions are suitable for the production of mouldings, filaments, fibres, coatings and composite materials which have an antistatic finish or are electrically conducting.
摘要:
Use as herbicides of, and herbicidal compositions containing as active ingredients, compounds of the formula: ##STR1## wherein the symbols have assigned meanings.
摘要:
A composition comprising a matrix of a thermoplastic, thermosetting or a structurally crosslinked polymer, in which is incorporated an electroconductive network of crystal needles of a charge transfer complex (abbreviated to CT complex) from an electron donor and an electron acceptor, characterized in that:(1) the matrix contains uniformly distributed an excess, with respect to the CT complex formation, either of at least one electron donor or at least one electron acceptor as weakly polymer-soluble finely divided particles,(2) the CT complex is formed either by at least one weakly polymer-soluble electron donor and at least one polymer-soluble electron acceptor or by at least one weakly polymer-soluble electron acceptor and at least one polymer-soluble electron donor, and(3) microcrystalline needles grow from the weakly polymer-soluble particles in the polymer mass, which microcrystalline needles are in contact with and connect the weakly polymer-soluble particles to form a network which penetrates the polymer mass.
摘要:
A process for the preparation of peri-dichalcogeno polycyclic aromatic compounds by preparing in a first step, in an amidic solvent, an alkali metal sulfide, selenide or telluride which, in a second step, is reacted with a peri-halogeno aromatic compound, which process comprises reacting in said first step an alkali metal base with elemental sulfur, selenium or tellurium at elevated temperature.
摘要:
The invention provides a method of combating a microorganism which comprises allowing a heterocyclic pentalene derivative of general formula I ##STR1## wherein X represents an oxygen atom, a sulphur atom or an --SO-- moiety; Y represents a sulphur, selenium or tellurium atom, provided that when Y represents a selenium or tellurium atom X is an oxygen atom; and R.sup.1 and R.sup.2 together represent a --CH.sub.2 --C(CH.sub.3).sub.2 --CCl(CONH.sub.2)-- or --CH.sub.2 --A--CH.sub.2 -- linkage where A is a --CH.sub.2 --, --CH(CH.sub.3)-- or --S(O).sub.n -- moiety, where n is 0, 1 or 2; provided that when X is an oxygen atom and Y is a sulphur atom R.sup.1 and R.sup.2 together represent a --CH.sub.2 --S(O).sub.n --CH.sub.2 -- linkage and when X is an --SO-- moiety and A is a S(O).sub.n --, n is 2; to act on the microorganism or its environment; and such derivatives for use as a therapeutic substance.