Light-emitting device, light-emitting apparatus, electronic device, lighting device, and compound

A light-emitting device comprising:

• an anode;
• a cathode;
• and
• an EL layer between the anode and the cathode,
• wherein the EL layer comprises a light-emitting layer and an electron-transport layer,
• wherein the electron-transport layer is between the light-emitting layer and the cathode, and
• wherein the electron-transport layer comprises an organic compound represented by any one of Structural Formulae (1) to (4):

A light-emitting device comprising:

• an anode;
• a cathode;
• and
• an EL layer between the anode and the cathode,
• wherein the EL layer comprises a hole-injection layer, a light-emitting layer, and an electron-transport layer,
• wherein the hole-injection layer is between the anode and the light-emitting layer,
• wherein the electron-transport layer is between the light-emitting layer and the cathode,
• wherein the hole-injection layer comprises a hole-transport material and an acceptor material,
• wherein the electron-transport layer comprises an electron-transport material and a metal complex,
• wherein the hole-transport material is an organic compound having a hole-transport property and a HOMO level higher than or equal to −5.7 eV and lower than or equal to −5.4 eV,
• wherein the acceptor material exhibits an electron-accepting property with respect to the hole-transport material,
• wherein the electron-transport layer comprises an organic compound comprising a first skeleton, an anthracene ring, and a pyridine ring,
• wherein the first skeleton comprises any one of a quinoxaline ring, a dibenzo[h,g]quinoxaline ring, a triazine ring, and a benzofuropyrimidine ring,
• wherein the first skeleton is linked to the anthracene ring via a phenylene group, and
• wherein the pyridine ring is directly bonded to the anthracene ring.