Spirobifluroene compounds of the formula (1) which are suitable for use in electronic devices, ##STR00001##
and in particular organic electroluminescent devices, and to electronic devices that include the spirobifluorene compounds.

Spirobifluroene compounds of the formula (1) which are suitable for use in electronic devices, ##STR00001##
and in particular organic electroluminescent devices, and to electronic devices that include the spirobifluorene compounds.

Provided are a heterocyclic compound represented by Formula 1 and an organic light-emitting device including the heterocyclic compound. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an organic layer between the first electrode and the second electrode and including an emission layer; and at least one of the heterocyclic compound.

##STR00001##

Provided are a heterocyclic compound represented by Formula 1 and an organic light-emitting device including the heterocyclic compound. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an organic layer between the first electrode and the second electrode and including an emission layer; and at least one of the heterocyclic compound.

##STR00001##

Oxime ester compounds of the formula I, II, III, IV or V ##STR00001##
wherein
Z is for example ##STR00002##
Z.sub.1 for is NO.sub.2, unsubstituted or substituted C.sub.7-C.sub.20 aroyl or unsubstituted or substituted C.sub.4-C.sub.20heteroaroyl; provided that at least one Z.sub.1 is other than NO.sub.2; Z.sub.2 is for example unsubstituted or substituted C.sub.7-C.sub.20aroyl; R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 for example are hydrogen, halogen, or unsubstituted or substituted C.sub.1-C.sub.20alkyl, unsubstituted or substituted C.sub.6-C.sub.20aryl, or unsubstituted or substituted C.sub.4-C.sub.20heteroaryl; R.sub.9, R.sub.10, R.sub.11, R.sub.12 and R.sub.13 for example are hydrogen, halogen, OR.sub.16, unsubstituted or substituted C.sub.1-C.sub.20alkyl; provided that R.sub.9 and R.sub.13 are neither hydrogen nor fluorine; R.sub.14 is for example unsubstituted or substituted C.sub.6-C.sub.20aryl or C.sub.3-C.sub.20heteroaryl Q is for example C.sub.6-C.sub.20arylene or C.sub.3-C.sub.20heteroarylene; Q.sub.1 is —C.sub.1-C.sub.20alkylene-CO—; Q.sub.2 is naphthoylene; Q.sub.3 is for example phenylene; L is for example O-alkylene-O—; R.sub.15 is for example hydrogen or C.sub.1-C.sub.20alkyl; R.sub.20 is for example hydrogen, or unsubstituted or substituted C.sub.1-C.sub.20alkyl; are effective photoinitiators.

Oxime ester compounds of the formula I, II, III, IV or V ##STR00001##
wherein
Z is for example ##STR00002##
Z.sub.1 for is NO.sub.2, unsubstituted or substituted C.sub.7-C.sub.20 aroyl or unsubstituted or substituted C.sub.4-C.sub.20heteroaroyl; provided that at least one Z.sub.1 is other than NO.sub.2; Z.sub.2 is for example unsubstituted or substituted C.sub.7-C.sub.20aroyl; R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 for example are hydrogen, halogen, or unsubstituted or substituted C.sub.1-C.sub.20alkyl, unsubstituted or substituted C.sub.6-C.sub.20aryl, or unsubstituted or substituted C.sub.4-C.sub.20heteroaryl; R.sub.9, R.sub.10, R.sub.11, R.sub.12 and R.sub.13 for example are hydrogen, halogen, OR.sub.16, unsubstituted or substituted C.sub.1-C.sub.20alkyl; provided that R.sub.9 and R.sub.13 are neither hydrogen nor fluorine; R.sub.14 is for example unsubstituted or substituted C.sub.6-C.sub.20aryl or C.sub.3-C.sub.20heteroaryl Q is for example C.sub.6-C.sub.20arylene or C.sub.3-C.sub.20heteroarylene; Q.sub.1 is —C.sub.1-C.sub.20alkylene-CO—; Q.sub.2 is naphthoylene; Q.sub.3 is for example phenylene; L is for example O-alkylene-O—; R.sub.15 is for example hydrogen or C.sub.1-C.sub.20alkyl; R.sub.20 is for example hydrogen, or unsubstituted or substituted C.sub.1-C.sub.20alkyl; are effective photoinitiators.

A rechargeable lithium-ion cell has a cell capacity and includes a positive electrode having a recharged potential and a negative electrode. The rechargeable lithium-ion cell also includes a charge-carrying electrolyte. The charge-carrying electrolyte includes a charge-carrying medium and a lithium salt. The rechargeable lithium-ion cell also includes a redox shuttle having the following structure. ##STR00001##

A rechargeable lithium-ion cell has a cell capacity and includes a positive electrode having a recharged potential and a negative electrode. The rechargeable lithium-ion cell also includes a charge-carrying electrolyte. The charge-carrying electrolyte includes a charge-carrying medium and a lithium salt. The rechargeable lithium-ion cell also includes a redox shuttle having the following structure. ##STR00001##

The present disclosure provides a nitrogen-containing compound, an electronic element and an electronic device, which belongs to the technical field of organic materials. The nitrogen-containing compound has a structure of Chemical Formula 1, wherein R.sub.1 and R.sub.2 are each independently selected from hydrogen or a group represented by Chemical Formula 1-1, and one and only one of R.sub.1 and R.sub.2 has the group of Chemical Formula 1-1; when R.sub.1 or R.sub.2 is selected from hydrogen, said R.sub.1 and R.sub.2 may be replaced by R.sub.4. The nitrogen-containing compound can improve the performance of electronic elements.

The present disclosure provides a nitrogen-containing compound, an electronic element and an electronic device, which belongs to the technical field of organic materials. The nitrogen-containing compound has a structure of Chemical Formula 1, wherein R.sub.1 and R.sub.2 are each independently selected from hydrogen or a group represented by Chemical Formula 1-1, and one and only one of R.sub.1 and R.sub.2 has the group of Chemical Formula 1-1; when R.sub.1 or R.sub.2 is selected from hydrogen, said R.sub.1 and R.sub.2 may be replaced by R.sub.4. The nitrogen-containing compound can improve the performance of electronic elements.