摘要:
Hetero-spiro compounds of the formula (I), where &PSgr; is an element of the 4th main group of the Periodic Table with the exception of carbon, preferably Sn, Ge or Si, particularly preferably Ge or Si, and K1 and K2 are, independently of one another, conjugated systems, for use in electroluminescence devices. The compounds of the formula (I) have a good solubility in customary organic solvents, improved film-forming properties and a significantly reduced tendency to crystallize.
摘要:
Conjugated polymers comprising recurring units of the formula (I), ##STR1## A, B, C, D are identical or different and are each from one to fifteen identical or different arylene and/or heteroarylene and/or vinylene groups which, like the spirobifluorene skeleton itself, may be unsubstituted or substituted;S are identical or different substituents;m, n are 0 or 1.The polymers of the invention having the formula (I) are suitable as electroluminescence materials and have, in particular, a high color purity of the emission.
摘要:
A conjugated polymer comprising repeating units of the formula (I), ##STR1## where the symbols and indices have the following meanings: .PSI. is an element of the 4th main group of the Periodic Table with the exception of carbon;D, E, F, G are identical or different and are --CR.sup.1 R.sup.2 --, --O--, --S--, --NR.sup.3 -- or a chemical bond;U is --CR.sup.4 .dbd.CR.sup.5 -- or a chemical bond;V is as defined for U or is --CR.sup.1 R.sup.2 --, --O--, --S--, --NR.sup.3 --, --SiR.sup.1 R.sup.2 --, --SO.sub.2 --, --O--, --CO--;A are identical or different and are H, a C.sub.1 --C.sub.20 -hydrocarbon radical which can also contain heteroatoms;T is --O--, --S--, --NR.sup.3 --, --CR.sup.1 R.sup.2 --, --CH.dbd.N--, --CA.dbd.CA--, --CH.dbd.CA--, --CH.dbd.CF-- or --CF.dbd.CF--;K, Q are identical or different hydrocarbon radicals which can contain heteroatoms and have conjugated electron systems;M, L are H or a straight-chain or branched alkyl group having from 1 to 22 carbon atoms, Br, Cl, F, CN, NO.sub.2 or CF.sub.3 ;m, n are identical or different and are 0, 1, 2, 3 or 4; and wherein said polymer is suitable as an electroluminescence material.
摘要翻译:包含式(I),(I)的重复单元的共轭聚合物,其中符号和指数具有以下含义:PSI是元素周期表第4主要组分的元素,除了碳; D,E,F,G相同或不同,为-CR1R2-,-O - , - S-,-NR3-或化学键; U是-CR4 = CR5-或化学键; V如对于U或为-CR 1 R 2 - , - O - , - S - , - NR 3 - , - SiR 1 R 2 - , - SO 2 - , - O - , - CO- A相同或不同,为H,也可含有杂原子的C 1 -C 20烃基; T是-O - , - S - , - NR 3 - , - CR 1 R 2 - , - CH = N-,-CA = CA-,-CH = CA-,-CH = CF-或-CF = CF-; K,Q是可以含有杂原子并具有共轭电子系统的相同或不同的烃基; M,L是H或具有1至22个碳原子的直链或支链烷基,Br,Cl,F,CN,NO 2或CF 3; m,n相同或不同,为0,1,2,3或4; 并且其中所述聚合物适合作为电致发光材料。
摘要:
Conjugated polymers comprising recurring units of the formula (I), ##STR1## where the symbols and indices have the following meanings: .psi. is an element of the 4th main group of the Periodic Table with the exception of carbon; D, E, F, G are identical or different and are each, for example, --O-- or a chemical bond; U is, for example, a chemical bond; V is, for example, as defined for U or is --O--; A are identical or different and are each, for example, H or a C.sub.1 -C.sub.20 -hydrocarbon radical; T is, for example, --O-- or --CA.dbd.CA--, where A is as defined above; K, L, M, Q are identical or different and are hydrocarbon radicals which can contain heteroatoms and have conjugated electron systems; m, n are identical or different and are 0, 1, 2, 3 or 4; are suitable as electroluminescence materials.
摘要:
Poly(4,5,9,10-tetrahydropyrene-2,7-diyl) derivatives of the formula (I) ##STR1## where the symbols R.sup.1 to R.sup.4 have the following meanings: R.sup.1, R.sup.2, R.sup.3, R.sup.4 are identically or variously H, a straight-chain or branched alkyl chain containing 1 to 22 carbon atoms, it being possible for one or more nonadjacent CH.sub.2 groups also to be replaced by --O--, --COO--, --OOC-- and/or phenylene, aryl or aryloxy groups, it being possible for the aromatic to be substituted by C.sub.1 -C.sub.22 -alkyl, C.sub.1 -C.sub.22 -alkoxy, Br, Cl, F, CN, and/or NO.sub.2, Br, Cl, F, CN, NO.sub.2, or carboalkoxy containing 2 to 23 carbon atoms; n is 10 to 150, are suitable as electroluminescence materials.
摘要:
Use of spiro compounds of the formula (I) ##STR1## where K.sup.1 and K.sup.2 are, independently of one another, conjugated systems, in electroluminescence devices. Preferred compounds of the formula (I) are 9,9'-spirobifluorene derivatives of the formula (II) ##STR2## where the benzo groups can be substituted independently of one another. Compounds of the formula (I) have a good solubility in customary organic solvents, improved film-forming properties and a significantly reduced tendency to crystallize. The production of electroluminescence devices is thereby made easier and their service life is increased.
摘要:
Conjugated polymers containing ansa substructures and their use as electroluminescence materials. Conjugated polymers containing ansa substructures, which contain aromatic groups and in which adjacent aromatic groups are connected to one another in such a way that one ring atom of one aromatic group is directly linked to one ring atom of the other aromatic group and any further linkages of these two aromatic groups are possible only via a bridge containing at least one tetravalent carbon atom and/or heteroatom. The polymers of the invention having ansa substructures are outstandingly suitable as electroluminescence materials, since they have a very high color purity.
摘要:
Use in electrooptical switching and display devices of a polymer comprising conjugatively linked chromophore segments whose emission properties are determined by the emission properties of the individual chromophore segments.Electroluminescence devices comprising the polymers of the present invention have, inter alia, a high color purity. The polymers used according to the present invention enable, in particular, blue and white electroluminescence to also be achieved.
摘要:
An optical brightener comprising one or more spiro compounds of the formula (I), where K1 and K2, which are identical or different, are conjugated systems, and &psgr; is C, Si, Ge, Sn or Pb, is notable for high fluorescence quantum yields and a high temperature stability.