| 主权项 |
1. A charging member comprising:
a support; and a surface layer on the support, wherein the surface layer contains a magnesium oxide particle; and a compound represented by a following formula (a) or a compound represented by a following formula (b):(in the formula (a),L1 represents polymetalloxane having a structural unit represented by M1On/2 wherein when metal atom M1 has a valence of p, n represents an integer of 1 or more and p or less,M1 represents at least one metal atom selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, W, Al, Ga, In, and Ge,X1 represents a structure represented by any one of following formulae (1) to (4),Y1 represents a group having a site coordinated with M1 in L1, and(i) when X1 is a structure represented by the formula (1), A1 represents an atomic group necessary for forming a 4 to 8 member ring together with M1, X1, and Y1, and containing an aromatic ring in which one carbon atom constituting the aromatic ring is bonded to an oxygen atom of X1, and(ii) when X1 is a structure represented by any one of the formulae (2) to (4),A1 represents a bond or atomic group necessary for forming a 4 to 8 member ring together with M1, X1, and Y1:in the formulae (1) to (4), symbol “*” represents a bonding site with A1, and symbol “**” represents a bonding site with M1 in L1,in the formula (b),L2 represents polymetalloxane having a structural unit represented by M2Om/2 wherein M2 represents at least one metal atom selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, W, Al, Ga, In, and Ge, andwhen metal atom M2 has a valence of q, m represents an integer of 1 or more and q or less,R21 to R25 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a trimethylsilyl group, anda cyclopentadienyl group is coordinated with the metal atom M2 in L2. |
